fix: Use Github raw url for MDI (#132)

Using unpkg for MDI glyphs has been unreliable, with timeout even with
generous thresholds and retries. Switch back to using Github raw URL.

(Hopefully) fixes #116.

keymap_drawer/config.py

@@ -257,7 +257,7 @@ class KeySidePars(BaseModel):
         exclude=True,
         default={
             "tabler": "https://unpkg.com/@tabler/icons/icons/outline/{}.svg",
-            "mdi": "https://unpkg.com/@mdi/svg/svg/{}.svg",
+            "mdi": "https://raw.githubusercontent.com/Templarian/MaterialDesign-SVG/master/svg/{}.svg",
             "mdil": "https://raw.githubusercontent.com/Pictogrammers/MaterialDesignLight/master/svg/{}.svg",
             "material": "https://fonts.gstatic.com/s/i/short-term/release/materialsymbolsoutlined/{}/default/48px.svg",
             "phosphor": "https://unpkg.com/@phosphor-icons/core/assets/{}.svg",