feat: add lingui/no-unlocalized-strings ESLint rule and fix translations (#16610)

## Summary
This PR adds the `lingui/no-unlocalized-strings` ESLint rule to detect
untranslated strings and fixes translation issues across multiple
components.

## Changes

### ESLint Configuration (`eslint.config.react.mjs`)
- Added comprehensive `ignore` patterns for non-translatable strings
(CSS values, HTML attributes, technical identifiers)
- Added `ignoreNames` for props that don't need translation (className,
data-*, aria-*, etc.)
- Added `ignoreFunctions` for console methods, URL APIs, and other
non-user-facing functions
- Disabled rule for debug files, storybook, and test files

### Components Fixed (~19 files)
- Object record components (field inputs, pickers, merge dialogs)
- Settings components (accounts, admin panel)
- Serverless function components
- Record table and title cell components

## Status
🚧 **Work in Progress** - ~124 files remaining to fix

This PR is being submitted as draft to allow progressive fixing of
remaining translation issues.

## Testing
- Run `npx eslint "src/**/*.tsx"` in `packages/twenty-front` to check
remaining issues

packages/twenty-front/src/modules/error-handler/components/AppRootErrorFallback.tsx

@@ -109,11 +109,11 @@ export const AppRootErrorFallback = ({
           <StyledImageContainer>
             <StyledBackgroundImage
               src="/images/placeholders/background/error_index_bg.png"
-              alt="Background"
+              alt={t`Background`}
             />
             <StyledInnerImage
               src="/images/placeholders/moving-image/error_index.png"
-              alt="Inner"
+              alt={t`Error illustration`}
             />
           </StyledImageContainer>
           <StyledEmptyTextContainer>
@@ -124,7 +124,7 @@ export const AppRootErrorFallback = ({
           </StyledEmptyTextContainer>
           <StyledButton onClick={resetErrorBoundary}>
             <StyledIcon size={16} />
-            Reload
+            {t`Reload`}
           </StyledButton>
         </StyledEmptyContainer>
       </StyledPanel>