Fallback on ctypes' find_library to load libxkbcommon

kitty/key_names.py

@@ -23,6 +23,10 @@ else:
                 break
             except Exception:
                 pass
+        else:
+            from ctypes.util import find_library
+            lib = find_library('xkbcommon')
+
         f = lib.xkb_keysym_from_name
         f.argtypes = [ctypes.c_char_p, ctypes.c_int]
         f.restype = ctypes.c_int