docs: Restructure apps documentation, add triggers and actions

packages/docs/pages/apps/twitter/triggers.md

@@ -0,0 +1,21 @@
+---
+items:
+  - name: My Tweets
+    desc: Will be triggered when you tweet something new.
+    avatar: /favicons/twitter.svg
+  - name: New Follower of Me
+    desc: Will be triggered when you have a new follower.
+    avatar: /favicons/twitter.svg
+  - name: Search Tweets
+    desc: Will be triggered when any user tweet something containing a specific keyword, phrase, username or hashtag.
+    avatar: /favicons/twitter.svg
+  - name: User Tweets
+    desc: Will be triggered when a specific user tweet something new.
+    avatar: /favicons/twitter.svg
+---
+
+<script setup>
+  import CustomListing from '../../components/CustomListing.vue'
+</script>
+
+<CustomListing />