potfiles: Add renamed files

### Rename

details-window.blp > details-dialog.blp
details_window.py > details_dialog.py

po/POTFILES

@@ -2,7 +2,7 @@ data/hu.kramo.Cartridges.desktop.in
 data/hu.kramo.Cartridges.gschema.xml.in
 data/hu.kramo.Cartridges.metainfo.xml.in
 
-data/gtk/details-window.blp
+data/gtk/details-dialog.blp
 data/gtk/game.blp
 data/gtk/help-overlay.blp
 data/gtk/preferences.blp
@@ -10,7 +10,7 @@ data/gtk/window.blp
 
 cartridges/main.py
 cartridges/window.py
-cartridges/details_window.py
+cartridges/details_dialog.py
 cartridges/game.py
 cartridges/preferences.py