feat(todoist): add app, authentication, docs (#826)

packages/docs/pages/apps/todoist/actions.md

@@ -0,0 +1,14 @@
+---
+favicon: /favicons/todoist.svg
+items:
+  - name: Get Tasks
+    desc: Finds tasks in Todoist, optionally matching specified parameters.
+  - name: Create Task
+    desc: Creates a task in Todoist.
+---
+
+<script setup>
+  import CustomListing from '../../components/CustomListing.vue'
+</script>
+
+<CustomListing />