Fix typos from refactoring

src/gh.ts

@@ -185,7 +185,7 @@ class GithubDetectUnusedRepos {
 
   public async fetchUnusedForkedRepos() {
     const params: Octokit.ReposGetForUserParams = {
-      this.username,
+      username: this.username,
     };
 
     const repos: ResponseWithDataArray<RepoFromGetUserRepo> = await this.paginate(

src/index.ts

@@ -1,6 +1,6 @@
 import 'babel-polyfill';
 // tslint:disable-next-line:ordered-imports
-import { fetchUnusedForkedRepos, runMain } from './gh';
+import { runMain } from './gh';
 
 // tslint:disable-next-line:only-arrow-functions
 (function(currentWindow: Window) {