Update issue templates

add all the missing labels to the blank issue template

.github/ISSUE_TEMPLATE/blank-issue.md

@@ -2,7 +2,8 @@
 name: Blank Issue
 about: Consistent formatting make Issues concise and easy to navigate
 title: ''
-labels: ''
+labels: 'feature: missing, level: missing, milestone: missing, priority: missing,
+  role: missing, size: missing'
 assignees: ''
 
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