🖌️ style: Update Light/Dark UI Themes (#1754)

* BIG UI UPDATE

* fix: search bar, dialog template, new chat icon, convo icon and delete/rename button

* moved some color config and a lot of files

* small text fixes and tailwind config refactor

* Update localization and UI styles

* Update styles and add user-select:none to Tooltip component

* Update mobile.css styles for navigation mask and background color

* Update component imports and styles

* Update DeleteButton imports and references

* Update UI components

* Update tooltip delay duration

* Fix styling and update text in various components

* fixed assistant style

* minor style fixes

* revert: removed CreationHeader & CreationPanel

* style: match new styling for SidePanel

* style: match bg-gray-800 to ChatGPT (#212121)

* style: remove slate for gray where applicable to match new light theme

---------

Co-authored-by: Danny Avila <messagedaniel@protonmail.com>

client/src/components/Messages/MessageHeader.tsx

@@ -90,7 +90,7 @@ 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 dark:border-gray-900/50 dark:bg-gray-800 dark:hover:bg-gray-700',
+          '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-800/50 dark:bg-gray-800 dark:hover:bg-gray-700',
           isNotClickable ? '' : 'cursor-pointer',
           'sticky top-0 z-10',
         )}