Added UI to indicate a new version (#222)

assets/js/alpine_helpers.js

@@ -0,0 +1,31 @@
+window.copyTextToClipboard = async (text) => {
+  // Navigator clipboard api needs a secure context (https)
+  if (navigator.clipboard && window.isSecureContext) {
+    await navigator.clipboard.writeText(text)
+  } else {
+    const textArea = document.createElement('textarea')
+    textArea.value = text
+    // Move textarea out of the viewport so it's not visible
+    textArea.style.position = 'absolute'
+    textArea.style.left = '-999999px'
+
+    document.body.prepend(textArea)
+    textArea.select()
+
+    try {
+      document.execCommand('copy')
+    } catch (error) {
+      console.error(error)
+    } finally {
+      textArea.remove()
+    }
+  }
+}
+
+window.markVersionAsSeen = (versionString) => {
+  localStorage.setItem('seenVersion', versionString)
+}
+
+window.isVersionSeen = (versionString) => {
+  return localStorage.getItem('seenVersion') === versionString
+}