feat: add issue_templates for creation of icons (#935)

Co-authored-by: Dashboard Icons Bot <homarr-labs@proton.me>

scripts/common.py

@@ -0,0 +1,7 @@
+import re
+
+def convert_to_kebab_case(name: str) -> str:
+    """Convert a filename to kebab-case."""
+    cleaned = re.sub(r'[^a-zA-Z0-9\s-]', '', name)
+    kebab_case_name = re.sub(r'[\s_]+', '-', cleaned).lower()
+    return kebab_case_name