Add a config file for issue templates with links

Link to Element Meta for enhancements and feature requests, and to the Matrix room for support.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: true
+contact_links:
+  - name: Enhancement or feature request
+    url: https://github.com/vector-im/element-meta/discussions/categories/ideas
+    about: Do you have a suggestion or feature request?
+  - name: Element Android Community Support
+    url: https://matrix.to/#/#element-android:matrix.org
+    about: General Element Android support questions can be asked in the app Matrix room