setting: issue title naming feature에서 feat으로 변경

Author: constantly-dev

.github/ISSUE_TEMPLATE/feature.yml

@@ -1,7 +1,7 @@
-name: '📌 Feature'
+name: '📌 Feat'
 description: '새로운 기능 또는 명세가 있나요?'
-title: '[Feature] '
-labels: '📌 feature'
+title: '[Feat] '
+labels: '📌 feat'
 body:
   - type: textarea
     attributes: