Deprecate runtime theme objects in favor of CSS variables (#18402)

## Summary

- **Eliminate `ICON_SIZES` / `ICON_STROKES` constants**: all icon
dimensions are now resolved at runtime via
`resolveThemeVariableAsNumber(themeCssVariables.icon.size.X)`, ensuring
values always come from computed CSS variables
- **No more consumer imports from `twenty-ui/theme`**: moved
`ColorSchemeContext`, `ColorSchemeProvider`, `ThemeColor`,
`MAIN_COLOR_NAMES`, `getNextThemeColor`, `AnimationDuration` to
`twenty-ui/theme-constants`
- **Remove `ThemeContext` / `ThemeContextProvider` / `ThemeProvider` /
`ThemeType`**: replaced across ~300 files with `themeCssVariables` (for
CSS contexts) or `resolveThemeVariable` / `resolveThemeVariableAsNumber`
(for JS runtime values)
- **Simplify provider chain**: only `ColorSchemeProvider` remains — it
toggles `light`/`dark` class on `document.documentElement` and provides
`colorScheme` via React context
- **Fix pre-existing test failures**: `useIcons.test.ts`
(non-configurable ES module spy) and
`turnRecordFilterGroupIntoGqlOperationFilter.test.ts`
(`Omit<RecordFilter, 'id'>` type mismatch)

### Theme access pattern (before → after)

| Context | Before | After |
|---------|--------|-------|
| CSS (Linaria) | `${({ theme }) => theme.font.color.primary}` |
`${themeCssVariables.font.color.primary}` |
| JS runtime (icon size, animation) | `theme.icon.size.md` /
`ICON_SIZES.md` |
`resolveThemeVariableAsNumber(themeCssVariables.icon.size.md)` |
| Color scheme check | `theme.name === 'dark'` |
`useContext(ColorSchemeContext).colorScheme === 'dark'` |

packages/twenty-front/src/modules/settings/data-model/object-details/components/SettingsObjectFieldDataType.tsx

@@ -1,12 +1,11 @@
-import { useContext } from 'react';
 import { styled } from '@linaria/react';
 import { Link } from 'react-router-dom';
 
 import { type SettingsFieldType } from '@/settings/data-model/types/SettingsFieldType';
 import { getSettingsFieldTypeConfig } from '@/settings/data-model/utils/getSettingsFieldTypeConfig';
 import { type IconComponent, IconTwentyStar } from 'twenty-ui/display';
-import { ThemeContext } from 'twenty-ui/theme';
-import { themeCssVariables } from 'twenty-ui/theme-constants';
+import { useContext } from 'react';
+import { ThemeContext, themeCssVariables } from 'twenty-ui/theme-constants';
 
 type SettingsObjectFieldDataTypeProps = {
   to?: string;
@@ -68,7 +67,6 @@ export const SettingsObjectFieldDataType = ({
   onClick,
 }: SettingsObjectFieldDataTypeProps) => {
   const { theme } = useContext(ThemeContext);
-
   const fieldTypeConfig = getSettingsFieldTypeConfig(value);
   const Icon: IconComponent =
     IconFromProps ?? fieldTypeConfig?.Icon ?? IconTwentyStar;

packages/twenty-front/src/modules/settings/data-model/object-details/components/SettingsObjectFieldItemTableRow.tsx

@@ -24,8 +24,7 @@ import {
 } from 'twenty-ui/display';
 import { LightIconButton } from 'twenty-ui/input';
 import { UndecoratedLink } from 'twenty-ui/navigation';
-import { ThemeContext } from 'twenty-ui/theme';
-import { themeCssVariables } from 'twenty-ui/theme-constants';
+import { ThemeContext, themeCssVariables } from 'twenty-ui/theme-constants';
 import { RelationType } from '~/generated-metadata/graphql';
 import { useNavigateSettings } from '~/hooks/useNavigateSettings';
 import { type SettingsObjectDetailTableItem } from '~/pages/settings/data-model/types/SettingsObjectDetailTableItem';
@@ -89,6 +88,7 @@ export const SettingsObjectFieldItemTableRow = ({
   mode,
   status,
 }: SettingsObjectFieldItemTableRowProps) => {
+  const { theme } = useContext(ThemeContext);
   const { t } = useLingui();
   const { fieldMetadataItem, objectMetadataItem } =
     settingsObjectDetailTableItem;
@@ -99,7 +99,6 @@ export const SettingsObjectFieldItemTableRow = ({
 
   const navigate = useNavigateSettings();
 
-  const { theme } = useContext(ThemeContext);
   const { getIcon } = useIcons();
   const Icon = getIcon(fieldMetadataItem.icon);
 
@@ -185,7 +184,9 @@ export const SettingsObjectFieldItemTableRow = ({
         <StyledNameTableCell>
           {!!Icon && (
             <Icon
-              style={{ minWidth: theme.icon.size.md }}
+              style={{
+                minWidth: theme.icon.size.md,
+              }}
               size={theme.icon.size.md}
               stroke={theme.icon.stroke.sm}
             />

packages/twenty-front/src/modules/settings/data-model/object-details/components/SettingsObjectItemTableRow.tsx

@@ -1,4 +1,4 @@
-import { useContext, type ReactNode } from 'react';
+import { type ReactNode, useContext } from 'react';
 import { styled } from '@linaria/react';
 import { useLingui } from '@lingui/react/macro';
 
@@ -12,8 +12,7 @@ import {
 } from '@/settings/data-model/object-details/components/SettingsObjectItemTableRowStyledComponents';
 import { TableCell } from '@/ui/layout/table/components/TableCell';
 import { useIcons } from 'twenty-ui/display';
-import { ThemeContext } from 'twenty-ui/theme';
-import { themeCssVariables } from 'twenty-ui/theme-constants';
+import { ThemeContext, themeCssVariables } from 'twenty-ui/theme-constants';
 
 export type SettingsObjectMetadataItemTableRowProps = {
   action: ReactNode;
@@ -57,8 +56,8 @@ export const SettingsObjectMetadataItemTableRow = ({
   link,
   totalObjectCount,
 }: SettingsObjectMetadataItemTableRowProps) => {
-  const { t } = useLingui();
   const { theme } = useContext(ThemeContext);
+  const { t } = useLingui();
 
   const { getIcon } = useIcons();
   const Icon = getIcon(objectMetadataItem.icon);
@@ -68,7 +67,9 @@ export const SettingsObjectMetadataItemTableRow = ({
       <StyledNameTableCell>
         {!!Icon && (
           <Icon
-            style={{ minWidth: theme.icon.size.md }}
+            style={{
+              minWidth: theme.icon.size.md,
+            }}
             size={theme.icon.size.md}
             stroke={theme.icon.stroke.sm}
           />

packages/twenty-front/src/modules/settings/data-model/object-details/components/SettingsObjectRelationItemTableRow.tsx

@@ -17,8 +17,7 @@ import { FieldMetadataType, SettingsPath } from 'twenty-shared/types';
 import { getSettingsPath, isDefined } from 'twenty-shared/utils';
 import { IconChevronRight, useIcons } from 'twenty-ui/display';
 import { UndecoratedLink } from 'twenty-ui/navigation';
-import { ThemeContext } from 'twenty-ui/theme';
-import { themeCssVariables } from 'twenty-ui/theme-constants';
+import { ThemeContext, themeCssVariables } from 'twenty-ui/theme-constants';
 import { useNavigateSettings } from '~/hooks/useNavigateSettings';
 
 type SettingsObjectRelationItemTableRowProps = {
@@ -99,9 +98,9 @@ export const SettingsObjectRelationItemTableRow = ({
   fieldMetadataItem,
   objectMetadataItem,
 }: SettingsObjectRelationItemTableRowProps) => {
+  const { theme } = useContext(ThemeContext);
   const { t } = useLingui();
   const navigate = useNavigateSettings();
-  const { theme } = useContext(ThemeContext);
   const { getIcon } = useIcons();
 
   const Icon = getIcon(fieldMetadataItem.icon);
@@ -163,7 +162,9 @@ export const SettingsObjectRelationItemTableRow = ({
       <StyledNameTableCell>
         {!!Icon && (
           <Icon
-            style={{ minWidth: theme.icon.size.md }}
+            style={{
+              minWidth: theme.icon.size.md,
+            }}
             size={theme.icon.size.md}
             stroke={theme.icon.stroke.sm}
           />