[skip ci] change issue label (#7847)

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,7 +1,7 @@
 name: ⭐ Feature request
 description: Suggest a feature to improve a source
 title: "Source name: Short description"
-labels: [enhancement]
+labels: [Feature request]
 body:
 
   - type: checkboxes

.github/ISSUE_TEMPLATE/meta_request.yml

@@ -1,6 +1,6 @@
 name: 🧠 Meta feature request
 description: Suggest improvements to the project
-labels: [meta]
+labels: [Meta request]
 body:
 
   - type: checkboxes

.github/ISSUE_TEMPLATE/source_bug.yml

@@ -1,7 +1,7 @@
 name: 🐞 Issue/Bug report
 description: Report a source issue/bug in Tachiyomi
 title: "Source name: Short description"
-labels: [bug]
+labels: [Bug]
 body:
 
   - type: checkboxes

.github/ISSUE_TEMPLATE/source_request.yml

@@ -1,6 +1,6 @@
 name: 🌐 Source request
 description: Suggest a new source for Tachiyomi
-labels: [Source Request]
+labels: [Source request]
 body:
 
   - type: checkboxes