Update issue templates

Include title placeholder

Author: NadeonCH

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,7 +1,7 @@
 ---
 name: Bug report
 about: Create a report to help us improve
-title: "[BUG]"
+title: "[BUG] Placeholder"
 labels: bug
 assignees: NadeonCH
 

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,7 +1,7 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
-title: "[SUGGESTION]"
+title: "[Suggestion] Placeholder"
 labels: enhancement
 assignees: NadeonCH