add no-unused and react/recommended to eslint (#1523)

* add no-unused-vars and no-unused-imports

* added quotes: double, and remove ignore pattern

* move itif and describeif into utils

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

src/main/lens-binary.ts

@@ -121,12 +121,12 @@ export class LensBinary {
   }
 
   protected async untarBinary() {
-    return new Promise<void>((resolve, reject) => {
+    return new Promise<void>(resolve => {
       this.logger.debug(`Extracting ${this.originalBinaryName} binary`);
       tar.x({
         file: this.tarPath,
         cwd: this.dirname
-      }).then((_ => {
+      }).then((() => {
         resolve();
       }));
     });