Added utils/url for functions in StatusCard

• Added:
- utils/url for functions in StatusCard

app/javascript/gabsocial/utils/urls.js

@@ -0,0 +1,24 @@
+const IDNA_PREFIX = 'xn--'
+
+export const decodeIDNA = (domain) => {
+  return domain
+    .split('.')
+    .map(part => part.indexOf(IDNA_PREFIX) === 0 ? punycode.decode(part.slice(IDNA_PREFIX.length)) : part)
+    .join('.')
+}
+
+export const getHostname = (url) => {
+  const parser = document.createElement('a')
+  parser.href = url
+  return parser.hostname
+}
+
+export const trim = (text, len) => {
+  const cut = text.indexOf(' ', len)
+
+  if (cut === -1) {
+    return text
+  }
+
+  return text.substring(0, cut) + (text.length > len ? '…' : '')
+}