Renamed webhook, changed type to url, added link to Pumble Webhook Documentation

src/components/notifications/Pumble.vue

@@ -1,8 +1,9 @@
 <template>
     <div class="mb-3">
         <label for="pumble-webhook-url" class="form-label mb-2">{{ $t("Webhook URL") }}</label><span style="color: red;"><sup>*</sup></span>
-        <input id="pumble-webhook-url" v-model="$parent.notification.pumblewebhookURL" type="text" class="form-control" required>
+        <input id="pumble-webhook-url" v-model="$parent.notification.webhookURL" type="url" class="form-control" required>
+    </div>
+    <div class="mb-3">
+        <a href="https://pumble.com/help/integrations/add-pumble-apps/incoming-webhooks-for-pumble/" target="_blank">{{ $t("documentationOf", ["Pumble Webbhook"]) }}</a>
     </div>
 </template>
-<script setup lang="ts">
-</script>