Update issue templates (#451)

* Update issue templates

* nits

Author: brendan-kellam

.github/ISSUE_TEMPLATE/config.yml

@@ -1,7 +1,4 @@
 contact_links:
-  - name: 💡 Feature Request
-    url: https://github.com/sourcebot-dev/sourcebot/discussions/new?category=ideas
-    about: Suggest any ideas you have using our discussion forums.
   - name: 🛟 Get Help
     url: https://github.com/sourcebot-dev/sourcebot/discussions/new?category=support
     about: If you can't get something to work the way you expect, open a question in our discussion forums.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,12 @@
+---
+name: "💡 Feature Request"
+about: Suggest an idea for this project
+title: "[FR] "
+labels: enhancement
+assignees: ''
+
+---
+
+<!-- Please search existing issues to avoid creating duplicates. -->
+
+<!-- Describe the feature you'd like. -->