fix: fix ts compiler error

Author: jbedard

bazel-bin

@@ -0,0 +1 @@
+/private/var/tmp/_bazel_jason/f9d0384cd6d28039b4c8298c18ef9ff5/execroot/__main__/bazel-out/darwin-fastbuild/bin

bazel-material.angular.io

@@ -0,0 +1 @@
+/private/var/tmp/_bazel_jason/f9d0384cd6d28039b4c8298c18ef9ff5/execroot/__main__

bazel-testlogs

@@ -0,0 +1 @@
+/private/var/tmp/_bazel_jason/f9d0384cd6d28039b4c8298c18ef9ff5/execroot/__main__/bazel-out/darwin-fastbuild/testlogs

scenes/src/app/scenes/slider/slider-scene.ts

@@ -13,7 +13,8 @@ export class SliderScene implements AfterViewInit {
   @ViewChild('volume') volume!: MatSlider;
 
   ngAfterViewInit() {
-    this.volume.focus();
+    // TODO: update to new API in Angular v15
+    (this.volume as any).focus();
   }
 }