Display Layout toolbar refinements for units (#5197)

* Fixes #3197
- Moved position of hide/show units toggle button.
- Added labels to many toolbar buttons, including hide/show units, hide/show frame, edit text, more.
- Added label to toolbar-toggle-button.vue.
- Added separator between stackOrder button and position inputs.

* Fixes #3197
- Removed unwanted margin in alphanumerics when label is hidden.

Co-authored-by: Shefali Joshi <simplyrender@gmail.com>

src/plugins/displayLayout/components/telemetry-view.scss

@@ -17,14 +17,14 @@
         }
     }
 
-    > * + * {
-        margin-left: $interiorMargin;
-    }
-
     &__value {
         @include isLimit();
     }
 
+    &__label {
+        margin-right: $interiorMargin;
+    }
+
     .c-frame & {
         @include abs();
         border: 1px solid transparent;