chore: add support for astro files (see #469)

scripts/convert_colors.py

@@ -0,0 +1,13 @@
+# convert colors from the format provided by https://raw.githubusercontent.com/ozh/github-colors/master/colors.json to what wakapi wants
+
+import sys
+import json
+
+with open(sys.argv[1], 'r') as f:
+    colors = json.load(f)
+
+result = {}
+for k, v in colors.items():
+    result[k] = v['color']
+
+print(json.dumps(result, indent=4))