fix(qchat): various fixes from mynah-ui (#4757)

* fix(qchat): cursor positioning, scroll bars and  max tabs notification

- Fixing issue with an incorrect input cursor position in the prompt text box
- Showing/hiding the scrollbars is now controlled by the OS settings
- Fixing issue with the max tabs notification not being dismissible

* fix(amazonq): revert table styles in mynah-ui

Author: imykhai

.changes/next-release/bugfix-3cd83457-8f62-41f1-9a92-4958a819edcd.json

@@ -0,0 +1,4 @@
+{
+  "type" : "bugfix",
+  "description" : "Amazon Q Chat: Fixing issue with the max tabs notification not being dismissible"
+}

.changes/next-release/bugfix-79bc98f0-1078-4794-8041-e85946396364.json

@@ -0,0 +1,4 @@
+{
+  "type" : "bugfix",
+  "description" : "Amazon Q Chat: Fixing issue with an incorrect input cursor position in the prompt text box"
+}

.changes/next-release/bugfix-9df996b9-97d4-4df0-af4c-8c641b4eba16.json

@@ -0,0 +1,4 @@
+{
+  "type" : "bugfix",
+  "description" : "Amazon Q Chat: Showing/hiding the scrollbars is now controlled by the OS settings"
+}

plugins/amazonq/mynah-ui/package-lock.json

@@ -12,7 +12,7 @@
         "lintfix": "eslint -c .eslintrc.js --fix --ext .ts ."
     },
     "dependencies": {
-        "@aws/mynah-ui-chat": "npm:@aws/[email protected].2",
+        "@aws/mynah-ui-chat": "npm:@aws/[email protected].5",
         "@types/node": "^14.18.5",
         "fs-extra": "^10.0.1",
         "ts-node": "^10.7.0",