fix: Lowercase the search term before searching users table (#31070)

* Lowercase the search string when searching for users.

* Switch the lowercasing to be done to the query hook param.

apps/studio/components/interfaces/Auth/Users/UsersV2.tsx

@@ -205,7 +205,7 @@ export const UsersV2 = () => {
             onKeyDown={(e) => {
               if (e.code === 'Enter') {
                 setSearch(search.trim())
-                setFilterKeywords(search.trim())
+                setFilterKeywords(search.trim().toLocaleLowerCase())
               }
             }}
             actions={[

apps/studio/components/interfaces/RoleImpersonationSelector/UserImpersonationSelector.tsx

@@ -32,7 +32,7 @@ const UserImpersonationSelector = () => {
       {
         projectRef: project?.ref,
         connectionString: project?.connectionString,
-        keywords: debouncedSearchText,
+        keywords: debouncedSearchText.trim().toLocaleLowerCase(),
       },
       {
         keepPreviousData: true,
@@ -95,7 +95,7 @@ const UserImpersonationSelector = () => {
               )
             }
             placeholder="Search for a user.."
-            onChange={(e) => setSearchText(e.target.value.trim())}
+            onChange={(e) => setSearchText(e.target.value)}
             value={searchText}
             size="small"
             actions={