🏄‍♂️ refactor: Optimize Reasoning UI & Token Streaming (#5546)

* ✨ feat: Implement Show Thinking feature; refactor: testing thinking render optimizations

* ✨ feat: Refactor Thinking component styles and enhance Markdown rendering

* chore: add back removed code, revert type changes

* chore: Add back resetCounter effect to Markdown component for improved code block indexing

* chore: bump @librechat/agents and google langchain packages

* WIP: reasoning type updates

* WIP: first pass, reasoning content blocks

* chore: revert code

* chore: bump @librechat/agents

* refactor: optimize reasoning tag handling

* style: ul indent padding

* feat: add Reasoning component to handle reasoning display

* feat: first pass, content reasoning part styling

* refactor: add content placeholder for endpoints using new stream handler

* refactor: only cache messages when requesting stream audio

* fix: circular dep.

* fix: add default param

* refactor: tts, only request after message stream, fix chrome autoplay

* style: update label for submitting state and add localization for 'Thinking...'

* fix: improve global audio pause logic and reset active run ID

* fix: handle artifact edge cases

* fix: remove unnecessary console log from artifact update test

* feat: add support for continued message handling with new streaming method

---------

Co-authored-by: Marco Beretta <81851188+berry-13@users.noreply.github.com>

client/src/components/Chat/Messages/Content/Parts/Text.tsx

@@ -46,7 +46,7 @@ const TextPart = memo(({ text, isCreatedByUser, showCursor }: TextPartProps) =>
         showCursorState && !!text.length ? 'result-streaming' : '',
         'markdown prose message-content dark:prose-invert light w-full break-words',
         isCreatedByUser && !enableUserMsgMarkdown && 'whitespace-pre-wrap',
-        isCreatedByUser ? 'dark:text-gray-20' : 'dark:text-gray-70',
+        isCreatedByUser ? 'dark:text-gray-20' : 'dark:text-gray-100',
       )}
     >
       {content}