Fix user is typing font size (#24096)

* Fix user is typing font size

* PR feedback

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

webapp/channels/src/components/advanced_text_editor/advanced_text_editor.scss

@@ -209,7 +209,7 @@
     overflow: hidden;
     height: 20px;
     margin-bottom: 5px;
-    font-size: 0.95em;
+    font-size: 11px;
     opacity: 0.7;
     text-overflow: ellipsis;
     white-space: nowrap;

webapp/channels/src/sass/components/_post-right.scss

@@ -160,11 +160,10 @@
             min-width: 1px;
             max-width: 230px;
             height: 20px;
-            margin-top: 4px;
+            margin: 2px 0;
-            margin-bottom: 0;
             float: left;
-            font-size: 13px;
+            font-size: 11px;
-            line-height: 20px;
+            line-height: 16px;
             opacity: 0.7;
         }
 

webapp/channels/src/sass/components/_post.scss

@@ -479,7 +479,7 @@
         overflow: hidden;
         height: 20px;
         margin: 2px 0;
-        font-size: 10px;
+        font-size: 11px;
         line-height: 16px;
         opacity: 0.7;
         text-overflow: ellipsis;