Update issue templates

Author: pyper-dev

.github/ISSUE_TEMPLATE/bug_report.md

@@ -2,7 +2,7 @@
 name: Bug report
 about: Help us find and resolve bugs
 title: "[BUG] <New Bug>"
-labels: ''
+labels: bug
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/feature_request.md

@@ -2,7 +2,7 @@
 name: Feature request
 about: Suggest an idea for this project
 title: "[FEATURE] <New Feature>"
-labels: ''
+labels: enhancement
 assignees: ''
 
 ---

.github/ISSUE_TEMPLATE/question.md

@@ -2,7 +2,7 @@
 name: Question
 about: Need some help?
 title: "[QUESTION] <New Question>"
-labels: ''
+labels: question
 assignees: RichardZhu2
 
 ---
@@ -12,4 +12,4 @@ assignees: RichardZhu2
 - [ ] I've checked existing issues for similar questions
 
 **Question**
-Please ask away! 😊
+Please ask away!