[fenix] Updates feature request template (https://github.com/mozilla-mobile/fenix/pull/2155)

.github/ISSUE_TEMPLATE/---feature-request.md

@@ -2,13 +2,12 @@
 name: "⭐️ Feature request"
 about: Suggest an idea for this project
 title: ''
-labels: '⭐️ feature request'
+labels: "🌟 feature request"
 assignees: ''
 
 ---
-
 ### Why/User Benefit/User Problem
 
-### What / Requirements
+### What/Requirements
 
 ### Acceptance Criteria (how do I know when I’m done?)