test(cspell,phpcs,phpstan): Fix linting errors

Closes #3510691

js/tree.js

@@ -30,6 +30,7 @@
 
         // Bind the autocomplete widget to the input field
         // @see https://api.jqueryui.com/autocomplete/#event-select
+        // cspell:ignore autocompleteselect
         uiAutocomplete.bind('autocompleteselect', (event, ui) => {
           event.stopPropagation();
           const tidMatch = ui.item.value.match(/\([0-9]*\)/g);
@@ -120,7 +121,9 @@
       keyboard: false, // Support keyboard navigation.
       keyPathSeparator: '/', // Used by node.getKeyPath() and tree.loadKeyPath().
       minExpandLevel: 1, // 1: root node is not collapsible
+      // cspell:ignore quicksearch
       quicksearch: false, // Navigate to next node by typing the first letters.
+      // cspell:ignore hier
       selectMode: 2, // 1:single, 2:multi, 3:multi-hier
       tabindex: 0, // Whole tree behaves as one single control
       titlesTabbable: false, // Node titles can receive keyboard focus