[Web] Muted indicator - icon and text not vertically centered in div (#1561)

* Vertically aligned Muted indicator by adding max-height to icon container

Author: edwardlee-msft

change/@internal-react-composites-4bce6cf1-8354-41d3-9685-2def9cb1c155.json

@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "Vertically aligned Muted indicator notification",
+  "packageName": "@internal/react-composites",
+  "email": "edwardlee@microsoft.com",
+  "dependentChangeType": "patch"
+}

packages/react-composites/src/composites/CallComposite/components/MutedNotification.tsx

@@ -48,7 +48,8 @@ const stackStyle = (theme: ITheme): IStyle => {
 
 const iconStyle = (theme: ITheme): IStyle => {
   return {
-    color: theme.palette.white
+    color: theme.palette.white,
+    maxHeight: '1.25rem'
   };
 };