Keep compact font family names together (#1263)

tests/test_font_routes.py

@@ -0,0 +1,11 @@
+from routes.font_routes import _derive_family
+
+
+def test_derive_family_keeps_jetbrains_together():
+    assert _derive_family("JetBrainsMono-Regular.woff2") == "JetBrains Mono"
+
+
+def test_derive_family_splits_common_family_suffixes():
+    assert _derive_family("FiraCode-SemiBold.ttf") == "Fira Code"
+    assert _derive_family("NotoSans-Bold.otf") == "Noto Sans"
+    assert _derive_family("RobotoSlab-Bold.woff2") == "Roboto Slab"