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

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

scripts/generate_icons.py

@@ -0,0 +1,83 @@
+from icons import IssueFormType, checkAction, iconFactory, checkType
+import os
+import sys
+from pathlib import Path
+import requests
+from PIL import Image
+import cairosvg
+
+ISSUE_FORM_ENV_VAR = "INPUT_ISSUE_FORM"
+
+ROOT_DIR = Path(__file__).resolve().parent.parent
+SVG_DIR = ROOT_DIR / "svg"
+PNG_DIR = ROOT_DIR / "png"
+WEBP_DIR = ROOT_DIR / "webp"
+
+# Ensure the output folders exist
+PNG_DIR.mkdir(parents=True, exist_ok=True)
+WEBP_DIR.mkdir(parents=True, exist_ok=True)
+
+def request_image(url: str) -> bytes:
+    response = requests.get(url)
+    response.raise_for_status()
+    return response.content
+
+def save_image(image: bytes, path: Path):
+    with open(path, 'wb') as f:
+        f.write(image)
+
+def convert_svg_to_png(svg_path: Path) -> bytes:
+    """Convert SVG to PNG."""
+    try:
+        return cairosvg.svg2png(url=str(svg_path), output_height=512)
+
+    except Exception as e:
+        print(f"Failed to convert {svg_path} to PNG: {e}")
+        raise e
+
+def save_image_as_webp(image_path: Path, webp_path: Path):
+    """Convert an image (PNG or other) to WEBP."""
+    try:
+        image = Image.open(image_path).convert("RGBA")
+        image.save(webp_path, format='WEBP')
+
+    except Exception as e:
+        print(f"Failed to convert {image_path} to WEBP: {e}")
+        raise e
+
+def main(type: str, action: IssueFormType, issue_form: str):
+    icon = iconFactory(type, issue_form, action)
+    convertions = icon.convertions()
+
+    for convertion in convertions:
+        svg_path = SVG_DIR / f"{convertion.name}.svg"
+        png_path = PNG_DIR / f"{convertion.name}.png"
+        webp_path = WEBP_DIR / f"{convertion.name}.webp"
+
+        imageBytes = request_image(convertion.source)
+
+        if icon.type == "svg":
+            save_image(imageBytes, svg_path)
+            print(f"Downloaded SVG: {svg_path}")
+
+            png_data = convert_svg_to_png(svg_path)
+            save_image(png_data, png_path)
+            print(f"Converted PNG: {png_path}")
+
+        if icon.type == "png":
+            save_image(imageBytes, png_path)
+            print(f"Downloaded PNG: {png_path}")
+            
+
+        save_image_as_webp(png_path, webp_path)
+        print(f"Converted WEBP: {webp_path}")
+
+
+if (__name__ == "__main__"):
+    type = checkType(sys.argv[1])
+    action = checkAction(sys.argv[2])
+    main(
+        type,
+        action,
+        os.getenv(ISSUE_FORM_ENV_VAR)
+    )