Adds better styles and animation for clicking URL in the popup

to indicate that it has been copied to clipboard.

manifest.json

@@ -1,6 +1,6 @@
 {
     "name": "__MSG_extensionName__",
-    "version": "1.0.1",
+    "version": "1.1.0",
     "description": "__MSG_extensionDescription__",
     "author": "Amunak",
     "homepage_url": "https://github.com/Amunak/thunderbird-list-unsubscribe-addon",

popup.css

@@ -4,9 +4,18 @@ body, html {
 }
 
 code {
+	display: inline-block;
 	font-size: .875em;
 	color: #d63384;
 	word-wrap: break-word;
+
+	transition: all 0.1s ease;
+	cursor: pointer;
+}
+
+code.hl {
+	color: #ffffff;
+	background-color: #d63384;
 }
 
 .popup-page {

popup.js

@@ -86,6 +86,10 @@ async function handleActiveTabs(tabs) {
 		linkEl.innerText = unsubLink
 		linkEl.addEventListener('click', () => {
 			navigator.clipboard.writeText(linkEl.innerText)
+			linkEl.classList.add('hl')
+			setTimeout(() => {
+				linkEl.classList.remove('hl')
+			}, 100)
 		})
 
 		linkContainerEl.innerText = browser.i18n.getMessage('unsubLink')