[PM-15847] libs/components strict migration (#15738)

This PR migrates `libs/components` to use strict TypeScript.

- Remove `@ts-strict-ignore` from each file in `libs/components` and resolved any new compilation errors
- Converted ViewChild and ContentChild decorators to use the new signal-based queries using the [Angular signal queries migration](https://angular.dev/reference/migrations/signal-queries)
  - Made view/content children `required` where appropriate, eliminating the need for additional null checking. This helped simplify the strict migration.

---

Co-authored-by: Vicki League <vleague@bitwarden.com>

libs/components/src/form-field/form-field.component.html

@@ -29,10 +29,10 @@
         >
           <label
             class="tw-flex tw-gap-1 tw-text-sm tw-text-muted -tw-translate-y-[0.675rem] tw-mb-0 tw-max-w-full tw-pointer-events-auto"
-            [attr.for]="input.labelForId"
+            [attr.for]="input().labelForId"
           >
             <ng-container *ngTemplateOutlet="labelContent"></ng-container>
-            @if (input.required) {
+            @if (input().required) {
               <span class="tw-text-[0.625rem] tw-relative tw-bottom-[-1px]">
                 ({{ "required" | i18n }})</span
               >
@@ -78,7 +78,7 @@
   <div class="tw-w-full tw-relative">
     <label
       class="tw-flex tw-gap-1 tw-text-sm tw-text-muted tw-mb-0 tw-max-w-full"
-      [attr.for]="input.labelForId"
+      [attr.for]="input().labelForId"
     >
       <ng-container *ngTemplateOutlet="labelContent"></ng-container>
     </label>
@@ -109,11 +109,11 @@
   </div>
 }
 
-@switch (input.hasError) {
+@switch (input().hasError) {
   @case (false) {
     <ng-content select="bit-hint"></ng-content>
   }
   @case (true) {
-    <bit-error [error]="input.error"></bit-error>
+    <bit-error [error]="input().error"></bit-error>
   }
 }