Fix dropdown cropping when creating new items

Fix cropping of dropdown menus when creating new
organizations/departments/products.

The removed CSS snippet was originally added to fix a layout bug in
the new OKR sidebar view in Firefox. That problem doesn't seem to be
present anymore, so the snippet should be safe to remove.

CHANGELOG.md

@@ -12,6 +12,8 @@ All notable changes to this project will be documented in this file. The format
 - Improved WCAG compliance with respect to text color contrast.
 - Fixed a problem that would sometimes cause an "infinite spinner" when a new
   version of the app was deployed.
+- Fixed cropping of dropdown menus when creating new
+  organizations/departments/products.
 
 ### Changed
 

src/components/layout/PageLayout.vue

@@ -101,10 +101,6 @@ export default {
     }
   }
 
-  &__main {
-    overflow-x: hidden;
-  }
-
   &__footer {
     margin-top: auto;
   }