Update issue templates (#2485)

Author: dead-claudia

.github/ISSUE_TEMPLATE/bug.md

@@ -1,8 +1,8 @@
 ---
-name: "🐛 Bug"
+name: "\U0001F41B Bug"
 about: Report a bug in Mithril
 title: ''
-labels: bug
+labels: 'Type: Bug'
 assignees: isiahmeadows
 
 ---

.github/ISSUE_TEMPLATE/feature-or-enhancement.md

@@ -1,8 +1,8 @@
 ---
-name: "🚀 Feature or Enhancement"
+name: "\U0001F680 Feature or Enhancement"
 about: Suggest an idea or feature for Mithril
 title: ''
-labels: enhancement
+labels: 'Type: Enhancement'
 assignees: isiahmeadows
 
 ---

.github/ISSUE_TEMPLATE/question.md

@@ -1,8 +1,8 @@
 ---
-name: "🙋‍♀️ Question"
+name: "\U0001F64B‍♀️ Question"
 about: Ask a question about Mithril
 title: ''
-labels: question
+labels: 'Type: Question'
 assignees: ''
 
 ---