fix(src): linting errors

Author: softvar

.eslintrc.json

@@ -6,6 +6,7 @@
   },
   "env": {
     "browser": true,
+    "webextensions": true,
     "node": true,
     "jest": true
   }

src/inject.js

@@ -9,7 +9,7 @@ const domUtil = require('./utils/domUtil');
 const storageUtil = require('./utils/storageUtil');
 const CommonEnum = require('./enums/CommonEnum');
 
-;(function() {
+(function() {
   window.enhancedGithub = {
     config: {}
   };

src/utils/domUtil.js

@@ -49,9 +49,6 @@ let domUtil = {
 
       elem.parentElement.insertAdjacentHTML('beforeend', html);
     }
-
-    return;
-
   },
   addRepoData: function() {
     setTimeout(() => {
@@ -106,8 +103,6 @@ let domUtil = {
     apiUtil.getRepoContent(function(data) {
       handlersUtil.onPathContentFetched(data);
     });
-
-    return;
   }
 };
 

src/utils/handlersUtil.js

@@ -91,8 +91,6 @@ let handlersUtil = {
         }
       }
     }, 1000);
-
-    return;
   }
 };