Refactor user selection state handling using hook

This commit introduces `useUserSelectionState` compositional hook. it
centralizes and allows reusing the logic for tracking and mutation user
selection state across the application.

The change aims to increase code reusability, simplify the code, improve
testability, and adhere to the single responsibility principle. It makes
the code more reliable against race conditions and removes the need for
tracking deep changes.

Other supporting changes:

- Introduce `CardStateIndicator` component for displaying the card state
  indicator icon, improving the testability and separation of concerns.
- Refactor `SelectionTypeHandler` to use functional code with more clear
  interfaces to simplify the code. It reduces complexity, increases
  maintainability and increase readability by explicitly separating
  mutating functions.
- Add new unit tests and extend improving ones to cover the new logic
  introduced in this commit. Remove the need to mount a wrapper
  component to simplify and optimize some tests, using parameter
  injection to inject dependencies intead.

src/presentation/components/Scripts/View/Cards/CardListItem.vue

@@ -22,16 +22,10 @@
         :icon="isExpanded ? 'folder-open' : 'folder'"
       />
       <!-- Indeterminate and full states -->
-      <div class="card__inner__state-icons">
-        <AppIcon
-          icon="battery-half"
-          v-if="isAnyChildSelected && !areAllChildrenSelected"
-        />
-        <AppIcon
-          icon="battery-full"
-          v-if="areAllChildrenSelected"
-        />
-      </div>
+      <CardSelectionIndicator
+        class="card__inner__selection_indicator"
+        :categoryId="categoryId"
+      />
     </div>
     <div class="card__expander" v-on:click.stop>
       <div class="card__expander__content">
@@ -49,17 +43,19 @@
 
 <script lang="ts">
 import {
-  defineComponent, ref, watch, computed, shallowRef,
+  defineComponent, computed, shallowRef,
 } from 'vue';
 import AppIcon from '@/presentation/components/Shared/Icon/AppIcon.vue';
 import { injectKey } from '@/presentation/injectionSymbols';
 import ScriptsTree from '@/presentation/components/Scripts/View/Tree/ScriptsTree.vue';
 import { sleep } from '@/infrastructure/Threading/AsyncSleep';
+import CardSelectionIndicator from './CardSelectionIndicator.vue';
 
 export default defineComponent({
   components: {
     ScriptsTree,
     AppIcon,
+    CardSelectionIndicator,
   },
   props: {
     categoryId: {
@@ -77,8 +73,7 @@ export default defineComponent({
     /* eslint-enable @typescript-eslint/no-unused-vars */
   },
   setup(props, { emit }) {
-    const { onStateChange, currentState } = injectKey((keys) => keys.useCollectionState);
-    const { events } = injectKey((keys) => keys.useAutoUnsubscribedEvents);
+    const { currentState } = injectKey((keys) => keys.useCollectionState);
 
     const isExpanded = computed({
       get: () => {
@@ -92,8 +87,6 @@ export default defineComponent({
       },
     });
 
-    const isAnyChildSelected = ref(false);
-    const areAllChildrenSelected = ref(false);
     const cardElement = shallowRef<HTMLElement>();
 
     const cardTitle = computed<string | undefined>(() => {
@@ -108,37 +101,14 @@ export default defineComponent({
       isExpanded.value = false;
     }
 
-    onStateChange((state) => {
-      events.unsubscribeAllAndRegister([
-        state.selection.changed.on(
-          () => updateSelectionIndicators(props.categoryId),
-        ),
-      ]);
-      updateSelectionIndicators(props.categoryId);
-    }, { immediate: true });
-
-    watch(
-      () => props.categoryId,
-      (categoryId) => updateSelectionIndicators(categoryId),
-    );
-
     async function scrollToCard() {
       await sleep(400); // wait a bit to allow GUI to render the expanded card
       cardElement.value.scrollIntoView({ behavior: 'smooth' });
     }
 
-    function updateSelectionIndicators(categoryId: number) {
-      const category = currentState.value.collection.findCategory(categoryId);
-      const { selection } = currentState.value;
-      isAnyChildSelected.value = category ? selection.isAnySelected(category) : false;
-      areAllChildrenSelected.value = category ? selection.areAllSelected(category) : false;
-    }
-
     return {
       cardTitle,
       isExpanded,
-      isAnyChildSelected,
-      areAllChildrenSelected,
       cardElement,
       collapse,
     };
@@ -192,7 +162,7 @@ $card-horizontal-gap    : $card-gap;
       flex: 1;
       justify-content: center;
     }
-    &__state-icons {
+    &__selection_indicator {
       height: $card-inner-padding;
       margin-right: -$card-inner-padding;
       padding-right: 10px;