Merge app Public URL and Public Domains settings into one App URL section (#22666)

## Context

The app settings tab showed two sections for the same concept: a "Public
URL" block with a very technical description (Permissions-Policy, COOP,
COEP), a blue info banner about the legacy `/s/` endpoint, and a
separate "Public Domains" block. Confusing, and scary-sounding for apps
whose routes are not really "public".

## Changes

**One merged "App URL" section** (still only rendered for apps that
actually expose HTTP-triggered functions):
- Title renamed to the neutral "App URL" with a one-line description:
"This app's routes are served from this URL. Add a custom domain to use
your own."
- Read-only copyable base URL input, custom domain list card right below
it.
- Removed the info banner and all header/CORS jargon.

**Always show the real URL**: `getFunctionsBaseUrl` now takes
`serverBaseUrl` and falls back to `${serverBaseUrl}/s` instead of
returning `undefined`, so self-hosted instances (no dedicated function
domain) see their actual base URL instead of nothing. This centralizes
the fallback previously duplicated in `FrontComponentRenderer` and
`getLogicFunctionHttpUrl`.

**"Public Domain" renamed to "Custom Domain"** in all user-facing
strings (add card, footer button, detail page, snackbars). Internal
identifiers, GraphQL types and routes keep the `PublicDomain` name to
match the backend entity.

**Polish**:
- Domain rows and the add card use a world icon instead of the mail
icon.
- Row description shows "Added x days ago" instead of a raw ISO
timestamp, via a new shared `useGetAddedRelativeDateDescription` hook
also adopted by the approved access domains card that had the same
inline helper.
- `FrontComponentRenderer` consumes `functionsBaseUrl` from
`useGetLogicFunctionHttpUrl` instead of re-deriving it from the same
atoms.
- User docs updated accordingly.

## Testing

- Ran the app locally (Postgres/Redis + server + front), synced a
fixture app with an HTTP-triggered logic function, and verified the
merged section renders correctly with the copyable URL and Add Custom
Domain card, no banner, no duplicate section.
- `getLogicFunctionHttpUrl` unit tests updated and passing (7/7), `npx
nx typecheck twenty-front` and `lint:diff-with-main` green.
- Locale catalogs are untouched; Crowdin sync regenerates them from the
new source strings.

---
_Generated by [Claude
Code](https://claude.ai/code/session_01NyEWoybMBq62cSNfAFdJAT)_

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packages/twenty-front/src/modules/front-components/components/FrontComponentRenderer.tsx

@@ -1,9 +1,6 @@
-import { currentWorkspaceState } from '@/auth/states/currentWorkspaceState';
-import { domainConfigurationState } from '@/domain-manager/states/domainConfigurationState';
 import { FrontComponentRendererProvider } from '@/front-components/components/FrontComponentRendererProvider';
 import { FrontComponentRendererWithSdkClient } from '@/front-components/components/FrontComponentRendererWithSdkClient';
-import { getFunctionsBaseUrl } from '@/settings/logic-functions/utils/getLogicFunctionHttpUrl';
-import { useAtomStateValue } from '@/ui/utilities/state/jotai/hooks/useAtomStateValue';
+import { useGetLogicFunctionHttpUrl } from '@/settings/logic-functions/hooks/useGetLogicFunctionHttpUrl';
 import { useFrontComponentExecutionContext } from '@/front-components/hooks/useFrontComponentExecutionContext';
 import { useOnFrontComponentUpdated } from '@/front-components/hooks/useOnFrontComponentUpdated';
 import { frontComponentApplicationTokenPairComponentState } from '@/front-components/states/frontComponentApplicationTokenPairComponentState';
@@ -33,8 +30,7 @@ export const FrontComponentRenderer = ({
   const { colorScheme } = useContext(ThemeContext);
   const { enqueueErrorSnackBar } = useSnackBar();
 
-  const { publicFunctionDomain } = useAtomStateValue(domainConfigurationState);
-  const currentWorkspace = useAtomStateValue(currentWorkspaceState);
+  const { functionsBaseUrl } = useGetLogicFunctionHttpUrl();
 
   const setFrontComponentApplicationTokenPair = useSetAtomComponentState(
     frontComponentApplicationTokenPairComponentState,
@@ -111,12 +107,6 @@ export const FrontComponentRenderer = ({
   const applicationVariables =
     data.frontComponent.applicationVariables ?? undefined;
 
-  const functionsBaseUrl =
-    getFunctionsBaseUrl({
-      publicFunctionDomain,
-      workspaceSubdomain: currentWorkspace?.subdomain,
-    }) ?? `${REACT_APP_SERVER_BASE_URL}/s`;
-
   if (usesSdkClient) {
     return (
       <FrontComponentRendererProvider frontComponentId={frontComponentId}>