Bump ESLint Typescript dependencies to latest

- Bump all ESLint dependencies related to TypeScript to their latest
  version. This was made possible by the resolution of compatibility
  issues with `@vue/eslint-config-airbnb-with-typescript`.
  See vuejs/eslint-config-airbnb#58 for details.
- Refactor code to comply with the latest linting configuration.
- Improve documentation in the ESLint configuration file to better
  describe the functionality and limitations of
  `@vue/typescript/recommended`.
  See vuejs/eslint-config-typescript#67 for details.
- Document functionality and limitation of `@vue/typescript/recommended`
  more clearly in ESLint configuration file.

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

@@ -4,7 +4,7 @@
     class="card"
     :class="{
       'is-collapsed': !isExpanded,
-      'is-inactive': activeCategoryId && activeCategoryId != categoryId,
+      'is-inactive': activeCategoryId && activeCategoryId !== categoryId,
       'is-expanded': isExpanded,
     }"
     @click="isExpanded = !isExpanded"

src/presentation/components/Scripts/View/Tree/TreeView/Node/NodeCheckbox.vue

@@ -2,8 +2,8 @@
   <div
     class="checkbox"
     :class="{
-      checked: checked,
-      indeterminate: indeterminate,
+      checked,
+      indeterminate,
     }"
   />
 </template>

src/presentation/components/Shared/FlatButton.vue

@@ -5,7 +5,7 @@
     type="button"
     class="flat-button"
     :class="{
-      disabled: disabled,
+      disabled,
     }"
     @click="onClicked"
   >