feat(FN-3632): remove quick-entry branch handling from dashboard and docs

Removes the `QuickEntryBox` component and its styles as part of FN-3632 cleanup, with its tests refactored accordingly. Also updates the test-changed script and fixes an isolated test home cleanup ordering issue.

Fusion-Task-Id: FN-3632

packages/dashboard/app/components/QuickEntryBox.css

@@ -113,26 +113,6 @@
   flex: 1 1 auto;
 }
 
-.quick-entry-branch-fields {
-  display: flex;
-  flex-wrap: wrap;
-  gap: var(--space-sm);
-  width: 100%;
-}
-
-.quick-entry-branch-fields label {
-  display: flex;
-  flex: 1 1 calc(50% - var(--space-sm));
-  flex-direction: column;
-  gap: var(--space-xs);
-  min-width: min(100%, calc(var(--space-xl) * 12));
-}
-
-.quick-entry-branch-fields span {
-  color: var(--text-muted);
-  font-size: 0.75rem;
-}
-
 .quick-entry-model-wrap {
   position: relative;
 }
@@ -454,11 +434,6 @@
     min-height: 36px;
   }
 
-  .quick-entry-branch-fields label {
-    flex: 1 1 100%;
-    min-width: 100%;
-  }
-
   .quick-entry-box .dep-dropdown {
     max-width: calc(100vw - calc(var(--space-lg) * 2));
   }