fix: Wide selection of comment toolbar fixes (#5160

* fix: Margin on floating toolbar
fix: Flash of toolbar on wide screens

* fix: Nesting of comment marks

* fix: Post button not visible when there is a draft comment, makes it look like the comment is saved
fix: Styling of link editor results now matches other menus
fix: Allow small link editor in comments sidebar

* fix: Cannot use arrow keys to navigate suggested links
Added animation to link suggestions
Added mixin for text ellipsis

* fix: Link input appears non-rounded when no creation option

* Accidental removal

app/styles/index.ts

@@ -52,3 +52,14 @@ export const hideScrollbars = () => `
     display: none;
   }
 `;
+
+/**
+ * Mixin to make text ellipse when it overflows.
+ *
+ * @returns string of CSS
+ */
+export const ellipsis = () => `
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  overflow: hidden;
+`;