chore: fix stylistic issues

src/background/modules/AutoRemoteFollow.js

@@ -145,12 +145,13 @@ function getInteractionType(url) {
 }
 
 /**
- * Handles changes to the URL of a tab
+ * Handles changes to the URL of a tab.
+ * @returns {void}
  */
 function onTabUpdate() {
     browser.tabs.executeScript(null, {
-        file: `/content_script/mastodonInject.js`
+        file: "/content_script/mastodonInject.js"
-    })
+    });
 }
 
 /**

src/content_script/mastodonInject.js

@@ -10,9 +10,9 @@
  * @returns {VersionNumber}
  */
 function parseVersionNumber() {
-  const versionElement = document.querySelector(`.link-footer`).textContent
+  const versionElement = document.querySelector(`.link-footer`).textContent;
-  const versionNumber = versionElement.match(/v?(?<major>\d+)\.(?<minor>\d+)\.(?<patch>\d+)$/)
+  const versionNumber = versionElement.match(/v?(?<major>\d+)\.(?<minor>\d+)\.(?<patch>\d+)$/);
-  return versionNumber.groups
+  return versionNumber.groups;
 }
 
 
@@ -20,81 +20,82 @@ function parseVersionNumber() {
  * Replacement onClick handler for Follow button
  * @param {Event} event 
  */
-function onClickFollow (event) {
+function onClickFollow(event) {
-  event.stopPropagation()
+  event.stopPropagation();
-  event.preventDefault()
+  event.preventDefault();
-  const username = window.location.pathname.split(`/`).slice(-1)[0]
+  const username = window.location.pathname.split(`/`).slice(-1)[0];
   // activate AutoRemoteFollow
-  window.open(`/users/${username}/remote_follow`, `_blank`)
+  window.open(`/users/${username}/remote_follow`, `_blank`);
 }
 
 /**
  * wait for element to appear
  * @param {string} selector
  * @param {number} timeout
+ * @see {@link https://github.com/storybookjs/test-runner/blob/6d41927154e8dd1e4c9e7493122e24e2739a7a0f/src/setup-page.ts#L134} from which this was adapted
  */
-function waitForElement (selector, timeout) {
+function waitForElement(selector, timeout) {
   return new Promise((resolve, reject) => {
     function getElement() {
-      return document.querySelector(selector)
+      return document.querySelector(selector);
     }
 
-    const element = getElement()
+    const element = getElement();
     if(element){
-      return resolve(element)
+      return resolve(element);
     }
 
     const observer = new MutationObserver(() => {
-      const element = getElement()
+      const element = getElement();
       if(element){
-        resolve(element)
+        resolve(element);
-        observer.disconnect()
+        observer.disconnect();
       }
     })
 
     observer.observe(document.body, {
       childList: true,
       subtree: true
-    })
+    });
 
     window.setTimeout(() => {
-      reject()
+      reject();
-    }, timeout)
+    }, timeout);
   }) 
 }
 
 /**
  * Inject replacement onClick handler for Follow button
  */
-async function injectFollowButton () {
+async function injectFollowButton() {
   try {
-    const followButton = await waitForElement(`.account__header__tabs__buttons button.button`, 20000)
+    const followButton = await waitForElement(`.account__header__tabs__buttons button.button`, 20000);
-    followButton.addEventListener(`click`, onClickFollow)
+    followButton.addEventListener(`click`, onClickFollow);
   } catch {
     // Follow button failed to appear
   }
 }
 
-async function init () {
+async function init() {
-  let versionNumber
+  let versionNumber;
 
   try {
-    const initialStateObject = JSON.parse(document.getElementById(`initial-state`).innerHTML)
+    const initialStateObject = JSON.parse(document.getElementById(`initial-state`).innerHTML);
-    const version = initialStateObject?.meta?.version
+    const version = initialStateObject?.meta?.version;
     if(!initialStateObject || !version){
       // not a Mastodon server
-      return
+      return;
     }
 
-    versionNumber = parseVersionNumber(version)
+    versionNumber = parseVersionNumber(version);
   } catch {
     return
   }
 
   
   if(Number.parseInt(versionNumber.major) >= 4){
-    await injectFollowButton()
+    await injectFollowButton();
   }
 }
 
-init()
+init();