[CHORE] Avoid isDefined duplicated reference, move it to twenty-shared (#9967)

# Introduction
Avoid having multiple `isDefined` definition across our pacakges
Also avoid importing `isDefined` from `twenty-ui` which exposes a huge
barrel for a such little util function

## In a nutshell
Removed own `isDefined.ts` definition from `twenty-ui` `twenty-front`
and `twenty-server` to move it to `twenty-shared`.
Updated imports for each packages, and added explicit dependencies to
`twenty-shared` if not already in place

Related PR https://github.com/twentyhq/twenty/pull/9941

packages/twenty-chrome-extension/src/utils/apolloClient.ts

@@ -2,7 +2,7 @@ import { ApolloClient, from, HttpLink, InMemoryCache } from '@apollo/client';
 import { setContext } from '@apollo/client/link/context';
 import { onError } from '@apollo/client/link/error';
 
-import { isDefined } from '~/utils/isDefined';
+import { isDefined } from 'twenty-shared';
 
 export const clearStore = () => {
   chrome.storage.local.remove([

packages/twenty-chrome-extension/src/utils/isDefined.ts

@@ -1,4 +0,0 @@
-import { isNull, isUndefined } from '@sniptt/guards';
-
-export const isDefined = <T>(value: T | null | undefined): value is T =>
-  !isUndefined(value) && !isNull(value);

packages/twenty-chrome-extension/src/utils/requestDb.ts

@@ -1,8 +1,8 @@
 import { OperationVariables } from '@apollo/client';
 import { DocumentNode } from 'graphql';
 
+import { isDefined } from 'twenty-shared';
 import getApolloClient from '~/utils/apolloClient';
-import { isDefined } from '~/utils/isDefined';
 
 export const callQuery = async <T>(
   query: DocumentNode,