Fix OS switching not working on tree view UI

This commit resolves a rendering bug in the tree view component.
Previously, updating the tree collection prior to node updates led to
rendering errors due to the presence of non-existent nodes in the new
collection.

Changes:

- Implement manual control over the rendering process in tree view. This
  includes clearing the rendering queue and currently rendered nodes
  before updates, aligning the rendering process with the updated
  collection.
- Add Cypress E2E tests to test switching between all operating systems
  and script views, ensuring no uncaught errors and preventing
  regression.
- Replace hardcoded operating system lists in the download URL list view
  with a unified `getSupportedOsList()` method from the application,
  reducing duplication and simplifying future updates.
- Rename `initial-nodes` to `nodes` in `TreeView.vue` to reflect their
  mutable nature.
- Centralize the function for getting operating system names into
  `OperatingSystemNames.ts`, improving reusability in E2E tests.

src/presentation/components/Scripts/View/Tree/ScriptsTree.vue

@@ -5,9 +5,9 @@
       'top-padding': hasTopPadding,
     }"
   >
-    <template v-if="initialNodes.length">
+    <template v-if="nodes.length">
       <TreeView
-        :initial-nodes="initialNodes"
+        :nodes="nodes"
         :selected-leaf-node-ids="selectedScriptNodeIds"
         :latest-filter-event="latestFilterEvent"
         @node-state-changed="handleNodeChangedEvent($event)"
@@ -61,7 +61,7 @@ export default defineComponent({
     }
 
     return {
-      initialNodes: treeViewInputNodes,
+      nodes: treeViewInputNodes,
       selectedScriptNodeIds,
       latestFilterEvent,
       handleNodeChangedEvent,