Fix Context menu scroll bar (#1675)

* add hidden overflow and max content to
context menu

* Change files

Author: dmceachernmsft

change/@internal-react-components-3764b35d-8cec-42df-bfac-6f41563cc583.json

@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "Fixes styles to remove undesired scroll bar in context menus on messages.",
+  "packageName": "@internal/react-components",
+  "email": "94866715+dmceachernmsft@users.noreply.github.com",
+  "dependentChangeType": "patch"
+}

packages/react-components/src/components/styles/ChatMessageComponent.styles.ts

@@ -48,7 +48,9 @@ export const chatMessageEditedTagStyle = (theme: Theme): string =>
  */
 export const chatMessageMenuStyle = mergeStyles({
   minWidth: '8.5rem',
-  cursor: 'pointer'
+  height: 'max-content',
+  cursor: 'pointer',
+  overflow: 'hidden'
 });
 
 /**