refactor: Remove SW-TypedRequest controller and update related references

ts/controllers/controller.typedrequest.ts

@@ -11,7 +11,7 @@ export class TypedRequestController {
     this.typedRouter = typedRouter;
   }
 
-  @plugins.smartserve.Post('/')
+  @plugins.smartserve.Post('')
   async handleTypedRequest(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
     try {
       const response = await this.typedRouter.routeAndAddResponse(ctx.body as plugins.typedrequestInterfaces.ITypedRequest);
@@ -31,4 +31,15 @@ export class TypedRequestController {
       });
     }
   }
+
+  @plugins.smartserve.Head('')
+  async handleTypedRequestHead(): Promise<Response> {
+    // HEAD request for online checking from service worker
+    return new Response(null, {
+      status: 200,
+      headers: {
+        'Content-Type': 'application/json',
+      },
+    });
+  }
 }