fix: duplicate merge button bug (#15284)

Fixes - https://github.com/twentyhq/twenty/issues/15263

- Replaced `useLoadSelectedRecordsInContextStore` with
`useLoadMergeRecords` in `useOpenMergeRecordsPageInCommandMenu` for
improved functionality.
- Updated `useMergePreview`, `useMergeRecordsActions`, and
`useMergeRecordsSettings` to utilize `mergeRecordsState` instead of the
deprecated context store hook.
- Cleaned up imports and ensured consistency across merge-related hooks.


https://github.com/user-attachments/assets/453539c9-7f2b-4e8c-bfa1-3ceebca07081

---------

Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-shared/src/utils/index.ts

@@ -85,6 +85,7 @@ export { safeParseRelativeDateFilterValue } from './safeParseRelativeDateFilterV
 export { getGenericOperationName } from './sentry/getGenericOperationName';
 export { getHumanReadableNameFromCode } from './sentry/getHumanReadableNameFromCode';
 export { capitalize } from './strings/capitalize';
+export { uncapitalize } from './strings/uncapitalize';
 export type {
   TipTapMarkType,
   TipTapNodeType,

packages/twenty-shared/src/utils/strings/__tests__/uncapitalize.test.ts

@@ -0,0 +1,10 @@
+import { uncapitalize } from '@/utils/strings/uncapitalize';
+describe('uncapitalize', () => {
+  it('should uncapitalize a string', () => {
+    expect(uncapitalize('Test')).toBe('test');
+  });
+
+  it('should return an empty string if input is an empty string', () => {
+    expect(uncapitalize('')).toBe('');
+  });
+});

packages/twenty-shared/src/utils/strings/uncapitalize.ts

@@ -0,0 +1,3 @@
+export const uncapitalize = (text: string) => {
+  return text.charAt(0).toLowerCase() + text.slice(1);
+};