firefox clipboard fix

src/components/CopyButton.vue

@@ -21,7 +21,7 @@ const error = ref(false)
 
 navigator.permissions.query({name: "clipboard-write"}).then((permission) => {
   permitted.value = permission.state === "granted" || permission.state === "prompt"
-})
+}).catch(()=>null)
 
 function copy() {
   if (!copied.value) {