style: update graphics (#1138)

* style: update new icon and NavLinks scale

* style: new username update

* refactor(Dropdown); style: general settings

* style(Dropdown); adjust theme

* style: dropdown and settings text

* fix(Dropdown) system theme not working

* style: topbar sticky; fix: general's menu settings transparent with light theme

* fix(SubmitButton) stop generate button

* fix: user_provided dialog for new dropdown

* fix: TS error 'display'

* fix(EditPresetDialog): for new dropdown

* style: added green send button

* converted textchat in tsx

* style(SubmitButton): tooltip

* test: fixed ThemeSelector and LangSelector

* removed transition-opacity

* fix all tests

* removed empty cn call

* chore: Update General.tsx to add Arabic option

---------

Co-authored-by: Danny Avila <110412045+danny-avila@users.noreply.github.com>

client/src/components/Messages/MessageHeader.tsx

@@ -89,8 +89,9 @@ const MessageHeader = ({ isSearchView = false }) => {
     <>
       <div
         className={cn(
-          'flex min-h-[60px] w-full flex-wrap items-center justify-between gap-3 border-b border-black/10 bg-white text-sm text-gray-500 transition-all hover:bg-gray-50 hover:bg-opacity-30 dark:border-gray-900/50 dark:bg-gray-800 dark:hover:bg-gray-700 dark:hover:bg-opacity-100',
-          isNotClickable ? '' : 'cursor-pointer ',
+          'flex min-h-[60px] w-full flex-wrap items-center justify-between gap-3 border-b border-black/10 bg-white text-sm text-gray-500 transition-all hover:bg-gray-50 dark:border-gray-900/50 dark:bg-gray-800 dark:hover:bg-gray-700',
+          isNotClickable ? '' : 'cursor-pointer',
+          'sticky top-0 z-10',
         )}
         onClick={() => (isNotClickable ? null : setSaveAsDialogShow(true))}
       >