feat(brave-search): add app with web search action

packages/docs/pages/apps/brave-search/actions.md

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+---
+favicon: /favicons/brave-search.svg
+items:
+  - name: Web search
+    desc: Queries Brave Search and get back search results from the web.
+---
+
+<script setup>
+  import CustomListing from '../../components/CustomListing.vue'
+</script>
+
+<CustomListing />

packages/docs/pages/apps/brave-search/connection.md

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+# Brave Search
+
+1. Go to [API Keys page](https://api.search.brave.com/app/keys) on Brave Search.
+2. Create a new API key.
+3. Paste the key into the `API Key` field in Automatisch.
+4. Write any screen name to be displayed in Automatisch.
+5. Click `Save`.
+6. Start using Brave Search integration with Automatisch!