[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-control/label.component.ts

@@ -1,5 +1,3 @@
-// FIXME: Update this file to be type safe and remove this and next line
-// @ts-strict-ignore
 import { CommonModule } from "@angular/common";
 import { Component, ElementRef, HostBinding, input, Optional } from "@angular/core";
 
@@ -32,7 +30,7 @@ export class BitLabel {
   ];
 
   @HostBinding("title") get title() {
-    return this.elementRef.nativeElement.textContent.trim();
+    return this.elementRef.nativeElement.textContent?.trim() ?? "";
   }
 
   readonly id = input(`bit-label-${nextId++}`);