games-util/input-remapper: 9999: Handle build system changes

The dev has dropped setup.py but continues to use setuptools.

Two patches introduced:
1. Dev has not specified a build-backend in pyproject.toml
2. mo-file generation manual execution (used to get handled by setup.py)

Also "pydbus" has been replaced with "dasbus"

Signed-off-by: Erica Nebula <EricaNebula@Proton.me>

games-util/input-remapper/files/build-backend.patch

@@ -0,0 +1,12 @@
+diff --git a/pyproject.toml b/pyproject.toml
+index 17cd3f4..dbcdd0d 100644
+--- a/pyproject.toml
++++ b/pyproject.toml
+@@ -1,3 +1,7 @@
++[build-system]
++requires = ["setuptools"]
++build-backend = "setuptools.build_meta"
++
+ [project]
+ name = "input-remapper"
+ version = "2.2.0"