meta: change feature request label

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,7 +1,7 @@
 ---
 name: Feature request
-about: Suggest an idea for Oh My Zsh
-labels: 'Type: feature request'
+about: Suggest a feature for Oh My Zsh
+labels: 'Type: feature'
 
 ---