feat: enhance agent sharing functionality and UI improvements

- Added shared agents state management in Navigation and AgentsList components.
- Implemented fetching and displaying shared agents in the AgentsList.
- Introduced functionality to hide shared agents with appropriate API integration.
- Updated the SharedAgent component layout for better UI consistency.
- Improved error handling in conversation fetching logic.
- Added new API endpoint for hiding shared agents.
- Updated Redux slice to manage shared agents state.
- Refactored AgentCard and AgentSection components for better code organization and readability.

frontend/src/conversation/conversationHandlers.ts

@@ -150,10 +150,7 @@ export function handleFetchAnswerSteaming(
           done,
           value,
         }: ReadableStreamReadResult<Uint8Array>) => {
-          if (done) {
-            console.log(counterrr);
-            return;
-          }
+          if (done) return;
 
           counterrr += 1;
 
@@ -163,7 +160,7 @@ export function handleFetchAnswerSteaming(
           const events = buffer.split('\n\n');
           buffer = events.pop() ?? '';
 
-          for (let event of events) {
+          for (const event of events) {
             if (event.trim().startsWith('data:')) {
               const dataLine: string = event
                 .split('\n')