[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/table/table.component.ts

@@ -1,15 +1,13 @@
-// FIXME: Update this file to be type safe and remove this and next line
-// @ts-strict-ignore
 import { isDataSource } from "@angular/cdk/collections";
 import { CommonModule } from "@angular/common";
 import {
   AfterContentChecked,
   Component,
-  ContentChild,
   Directive,
   OnDestroy,
   TemplateRef,
   input,
+  contentChild,
 } from "@angular/core";
 import { Observable } from "rxjs";
 
@@ -32,9 +30,9 @@ export class TableComponent implements OnDestroy, AfterContentChecked {
   readonly dataSource = input<TableDataSource<any>>();
   readonly layout = input<"auto" | "fixed">("auto");
 
-  @ContentChild(TableBodyDirective) templateVariable: TableBodyDirective;
+  readonly templateVariable = contentChild(TableBodyDirective);
 
-  protected rows$: Observable<any[]>;
+  protected rows$?: Observable<any[]>;
 
   private _initialized = false;