fix: mac should be able to select ai panel text

Author: abose

src/styles/Extn-AIChatPanel.less

@@ -243,6 +243,9 @@
     padding: 8px 10px;
     min-height: 0;
     min-width: 0;
+    -webkit-user-select: text;
+    user-select: text;
+    cursor: default;
 }
 
 /* ── Individual messages ────────────────────────────────────────────── */
@@ -265,6 +268,7 @@
         word-wrap: break-word;
         overflow-wrap: anywhere;
         min-width: 0;
+        -webkit-user-select: text;
         user-select: text;
         cursor: text;
     }