Turn on several TSC options

- noUnusedLocals
- noImplicitReturns
- importsNotUsedAsValues: error

Signed-off-by: Sebastian Malton <sebastian@malton.name>

integration/__tests__/app.tests.ts

@@ -8,7 +8,7 @@
   TEST_NAMESPACE namespace. This is done to minimize destructive impact of the cluster tests on an existing minikube
   cluster and vice versa.
 */
-import { Application } from "spectron";
+import type { Application } from "spectron";
 import * as utils from "../helpers/utils";
 import { listHelmRepositories } from "../helpers/utils";
 import { fail } from "assert";

integration/__tests__/cluster-pages.tests.ts

@@ -4,7 +4,7 @@
   TEST_NAMESPACE namespace. This is done to minimize destructive impact of the cluster tests on an existing minikube
   cluster and vice versa.
 */
-import { Application } from "spectron";
+import type { Application } from "spectron";
 import * as utils from "../helpers/utils";
 import { minikubeReady, waitForMinikubeDashboard } from "../helpers/minikube";
 import { exec } from "child_process";

integration/__tests__/command-palette.tests.ts

@@ -1,4 +1,4 @@
-import { Application } from "spectron";
+import type { Application } from "spectron";
 import * as utils from "../helpers/utils";
 
 jest.setTimeout(60000);

integration/helpers/minikube.ts

@@ -1,5 +1,5 @@
 import { spawnSync } from "child_process";
-import { Application } from "spectron";
+import type { Application } from "spectron";
 
 export function minikubeReady(testNamespace: string): boolean {
   // determine if minikube is running