Ui ifxes (#5890)

* PLT-5975 - Back arrow in flag list cutting off

* PLT-6049 - Fixing pin icon color, and hover state

* PLT-5989 - Channel member and pin icon issue

* PLT-6067 - Pinned icon misaligned in firefox

* PLT-5885 - Adjusting icon spacing in modal

webapp/sass/responsive/_tablet.scss

@@ -220,9 +220,8 @@
         .sidebar--right__title {
             display: inline-block;
             max-width: 300px;
-            white-space: nowrap;
-            overflow: hidden;
             text-overflow: ellipsis;
+            white-space: nowrap;
         }
     }