Fix flaky Argos diffs (#21771)

Inputs and selects with a trailing icon (copy button, chevron, etc.)
were flaky in Argos: the icon would intermittently flag as appearing
twice.

The icon's x-position depends on font-rendered content width, and under
Argos's `fit-content` capture the whole row is content-sized. Inter is
loaded from the Google Fonts CDN with `display=swap`, and Argos's font
gate (`document.fonts.status === "loaded"`) doesn't reliably catch the
late swap, so the snapshot sometimes lands pre-swap and sometimes
post-swap. The diff then paints both the old and new icon positions,
which reads as a duplicated icon.

This adds a Storybook loader that force-loads the Inter weights and
awaits `document.fonts.ready` before each story renders, so screenshots
are always taken post-swap. Fixes the whole class at once rather than
per component.

Note: affected trailing-icon stories will need a one-time Argos
re-baseline.

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packages/twenty-front/.storybook/preview.tsx

@@ -98,6 +98,17 @@ const STORYBOOK_DEFAULT_USER_CONTEXT = {
   timeZone: 'UTC',
 };
 
+const INTER_FONT_WEIGHTS = ['400', '500', '600'];
+
+const waitForInterFontLoadedBeforeScreenshot = async () => {
+  await Promise.all(
+    INTER_FONT_WEIGHTS.map((weight) =>
+      document.fonts.load(`${weight} 1em Inter`),
+    ),
+  );
+  await document.fonts.ready;
+};
+
 const preview: Preview = {
   decorators: [
     (Story) => {
@@ -124,7 +135,7 @@ const preview: Preview = {
     resetJotaiStore();
   },
 
-  loaders: [mswLoader],
+  loaders: [mswLoader, waitForInterFontLoadedBeforeScreenshot],
 
   parameters: {
     controls: {