[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/tabs/shared/tab-list-item.directive.ts

@@ -1,5 +1,3 @@
-// FIXME: Update this file to be type safe and remove this and next line
-// @ts-strict-ignore
 import { FocusableOption } from "@angular/cdk/a11y";
 import { Directive, ElementRef, HostBinding, Input, input } from "@angular/core";
 
@@ -15,7 +13,7 @@ export class TabListItemDirective implements FocusableOption {
   // TODO: Skipped for signal migration because:
   //  This input overrides a field from a superclass, while the superclass field
   //  is not migrated.
-  @Input() disabled: boolean;
+  @Input() disabled = false;
 
   @HostBinding("attr.disabled")
   get disabledAttr() {