Fix code highlighting and optimize category select

This commit introduces a batched debounce mechanism for managing user
selection state changes. It effectively reduces unnecessary processing
during rapid script checking, preventing multiple triggers for code
compilation and UI rendering.

Key improvements include:

- Enhanced performance, especially noticeable when selecting large
  categories. This update resolves minor UI freezes experienced when
  selecting categories with numerous scripts.
- Correction of a bug where the code area only highlighted the last
  selected script when multiple scripts were chosen.

Other changes include:

- Timing functions:
  - Create a `Timing` folder for `throttle` and the new
    `batchedDebounce` functions.
  - Move these functions to the application layer from the presentation
    layer, reflecting their application-wide use.
  - Refactor existing code for improved clarity, naming consistency, and
    adherence to new naming conventions.
  - Add missing unit tests.
- `UserSelection`:
  - State modifications in `UserSelection` now utilize a singular object
    inspired by the CQRS pattern, enabling batch updates and flexible
    change configurations, thereby simplifying change management.
- Remove the `I` prefix from related interfaces to align with new coding
  standards.
- Refactor related code for better testability in isolation with
  dependency injection.
- Repository:
  - Move repository abstractions to the application layer.
  - Improve repository abstraction to combine `ReadonlyRepository` and
    `MutableRepository` interfaces.
- E2E testing:
  - Introduce E2E tests to validate the correct batch selection
    behavior.
  - Add a specialized data attribute in `TheCodeArea.vue` for improved
    testability.
  - Reorganize shared Cypress functions for a more idiomatic Cypress
    approach.
  - Improve test documentation with related information.
- `SelectedScript`:
  - Create an abstraction for simplified testability.
  - Introduce `SelectedScriptStub` in tests as a substitute for the
    actual object.

src/presentation/components/Scripts/View/Tree/NodeContent/RevertToggle.vue

@@ -41,7 +41,7 @@ export default defineComponent({
 
     const isReverted = computed<boolean>({
       get() {
-        const { selectedScripts } = currentSelection.value;
+        const { selectedScripts } = currentSelection.value.scripts;
         return revertHandler.value.getState(selectedScripts);
       },
       set: (value: boolean) => {

src/presentation/components/Scripts/View/Tree/NodeContent/Reverter/CategoryReverter.ts

@@ -1,6 +1,6 @@
-import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
-import { IUserSelection } from '@/application/Context/State/Selection/IUserSelection';
+import { UserSelection } from '@/application/Context/State/Selection/UserSelection';
 import { ICategoryCollection } from '@/domain/ICategoryCollection';
+import { SelectedScript } from '@/application/Context/State/Selection/Script/SelectedScript';
 import { getCategoryId } from '../../TreeViewAdapter/CategoryNodeMetadataConverter';
 import { IReverter } from './IReverter';
 import { ScriptReverter } from './ScriptReverter';
@@ -19,8 +19,16 @@ export class CategoryReverter implements IReverter {
     return this.scriptReverters.every((script) => script.getState(selectedScripts));
   }
 
-  public selectWithRevertState(newState: boolean, selection: IUserSelection): void {
-    selection.addOrUpdateAllInCategory(this.categoryId, newState);
+  public selectWithRevertState(newState: boolean, selection: UserSelection): void {
+    selection.categories.processChanges({
+      changes: [{
+        categoryId: this.categoryId,
+        newStatus: {
+          isSelected: true,
+          isReverted: newState,
+        },
+      }],
+    });
   }
 }
 

src/presentation/components/Scripts/View/Tree/NodeContent/Reverter/IReverter.ts

@@ -1,7 +1,7 @@
-import { IUserSelection } from '@/application/Context/State/Selection/IUserSelection';
-import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
+import { UserSelection } from '@/application/Context/State/Selection/UserSelection';
+import { SelectedScript } from '@/application/Context/State/Selection/Script/SelectedScript';
 
 export interface IReverter {
   getState(selectedScripts: ReadonlyArray<SelectedScript>): boolean;
-  selectWithRevertState(newState: boolean, selection: IUserSelection): void;
+  selectWithRevertState(newState: boolean, selection: UserSelection): void;
 }

src/presentation/components/Scripts/View/Tree/NodeContent/Reverter/ScriptReverter.ts

@@ -1,5 +1,5 @@
-import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
-import { IUserSelection } from '@/application/Context/State/Selection/IUserSelection';
+import { UserSelection } from '@/application/Context/State/Selection/UserSelection';
+import { SelectedScript } from '@/application/Context/State/Selection/Script/SelectedScript';
 import { getScriptId } from '../../TreeViewAdapter/CategoryNodeMetadataConverter';
 import { IReverter } from './IReverter';
 
@@ -18,7 +18,15 @@ export class ScriptReverter implements IReverter {
     return selectedScript.revert;
   }
 
-  public selectWithRevertState(newState: boolean, selection: IUserSelection): void {
-    selection.addOrUpdateSelectedScript(this.scriptId, newState);
+  public selectWithRevertState(newState: boolean, selection: UserSelection): void {
+    selection.scripts.processChanges({
+      changes: [{
+        scriptId: this.scriptId,
+        newStatus: {
+          isSelected: true,
+          isReverted: newState,
+        },
+      }],
+    });
   }
 }