Add bug report template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,34 @@
+---
+name: Bug report
+about: Found an issue with gBar?
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+*Please fill out this form and delete the defaults(everything not in bold font), so I can help you better*
+**Describe the bug**
+What doesn't work? Please be as precise as possible.
+e.g.: gBar crashes on hovering
+
+**Steps to Reproduce**
+What did you do, that triggered the issue? 
+e.g.:
+1. Open the bar
+2. Hover over item
+3. gBar crashes
+
+**Expected behavior**
+What do you expect should happen?
+e.g.: gBar shouldn't crash, but stay open
+
+**Screenshots/Error logs**
+Please include as much information about the crash as possible.
+If it is a visual glitch, please include a screenshot/video.
+If it is a crash, please include the logs.
+
+**Information about your system and gBar**
+ - OS: [e.g. Arch, Ubuntu, ...]
+ - Desktop environment [e.g. Hyprland, Sway, ...]
+ - commit sha256 if possible [e.g. 16e7d8aa50ddebeffb2509d7c0428b38cad565f8]