🧹 chore: Remove Deprecated BingAI Code & Address Mobile Focus (#5565)

* chore: remove all bing code

* chore: remove bing code and auto-focus effects

* chore: add back escapeRegExp helper function for regex special character handling

* chore: remove deprecated fields from settings and conversation schema

* fix: ensure default endpoint is set correctly in conversation setup

* feat: add disableFocus option to newConversation for improved search behavior

api/models/schema/convoSchema.js

@@ -29,22 +29,6 @@ const convoSchema = mongoose.Schema(
     agent_id: {
       type: String,
     },
-    // for bingAI only
-    bingConversationId: {
-      type: String,
-    },
-    jailbreakConversationId: {
-      type: String,
-    },
-    conversationSignature: {
-      type: String,
-    },
-    clientId: {
-      type: String,
-    },
-    invocationId: {
-      type: Number,
-    },
     tags: {
       type: [String],
       default: [],