Resolve ESLint & invalid header warnings

package.json

@@ -11,8 +11,8 @@
       "https://*.discord.com/login"
     ],
     "icon": "https://victornpb.github.io/undiscord/images/icon128.png",
+    "updateURL": "https://raw.githubusercontent.com/victornpb/deleteDiscordMessages/master/deleteDiscordMessages.user.js",
     "downloadURL": "https://raw.githubusercontent.com/victornpb/deleteDiscordMessages/master/deleteDiscordMessages.user.js",
-    "contributionURL": "https://www.buymeacoffee.com/vitim",
     "grant": "none"
   },
   "license": "MIT",

src/undiscord-ui.js

@@ -101,8 +101,8 @@ function initUI() {
   $('#toggleSidebar').onclick = ()=> ui.undiscordWindow.classList.toggle('hide-sidebar');
   $('button#start').onclick = startAction;
   $('button#stop').onclick = stopAction;
-  $('button#clear').onclick = () => ui.logArea.innerHTML = '';
-  $('button#getAuthor').onclick = () => $('input#authorId').value = getAuthorId();
+  $('button#clear').onclick = () => { ui.logArea.innerHTML = '' };
+  $('button#getAuthor').onclick = () => { $('input#authorId').value = getAuthorId() };
   $('button#getGuild').onclick = () => {
     const guildId = $('input#guildId').value = getGuildId();
     if (guildId === '@me') $('input#channelId').value = getChannelId();
@@ -129,7 +129,7 @@ function initUI() {
     if (id) $('input#maxId').value = id;
     toggleWindow();
   };
-  $('button#getToken').onclick = () => $('input#token').value = fillToken();
+  $('button#getToken').onclick = () => { $('input#token').value = fillToken() };
 
   // sync delays
   $('input#searchDelay').onchange = (e) => {

src/utils/drag.js

@@ -215,11 +215,13 @@ function createElement(tag='div', attrs, parent) {
 function defaultArgs(defaults, options) {
   function isObj(x) { return x !== null && typeof x === 'object'; }
   function hasOwn(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }
-  if (isObj(options)) for (let prop in defaults) {
-    if (hasOwn(defaults, prop) && hasOwn(options, prop) && options[prop] !== undefined) {
-      if (isObj(defaults[prop])) defaultArgs(defaults[prop], options[prop]);
-      else defaults[prop] = options[prop];
+  if (isObj(options)) {
+    for (let prop in defaults) {
+      if (hasOwn(defaults, prop) && hasOwn(options, prop) && options[prop] !== undefined) {
+        if (isObj(defaults[prop])) defaultArgs(defaults[prop], options[prop]);
+        else defaults[prop] = options[prop];
+      }
     }
+    return defaults;
   }
-  return defaults;
 }

src/utils/log.js

@@ -9,4 +9,4 @@ export const log = {
 };
 
 var logFn; // custom console.log function
-export const setLogFn = (fn) => logFn = fn;
+export const setLogFn = (fn) => {logFn = fn};