Rename desktop/appdata files to lowercase.

This is necessary for icons to work in Plasma Wayland session.

src/CMakeLists.txt

@@ -56,8 +56,8 @@ target_link_libraries(partitionmanager ${BLKID_LIBRARIES}
 target_compile_definitions(partitionmanager PRIVATE -DCMAKE_INSTALL_FULL_LIBEXECDIR_KF5=\"${CMAKE_INSTALL_FULL_LIBEXECDIR_KF5}\")
 
 install(TARGETS partitionmanager ${INSTALL_TARGETS_DEFAULT_ARGS})
-install(FILES org.kde.PartitionManager.appdata.xml DESTINATION ${KDE_INSTALL_METAINFODIR})
+install(FILES org.kde.partitionmanager.appdata.xml DESTINATION ${KDE_INSTALL_METAINFODIR})
 install(FILES gui/partitionmanagerui.rc DESTINATION ${KXMLGUI_INSTALL_DIR}/partitionmanager)
-install(PROGRAMS org.kde.PartitionManager.desktop DESTINATION ${XDG_APPS_INSTALL_DIR})
+install(PROGRAMS org.kde.partitionmanager.desktop DESTINATION ${XDG_APPS_INSTALL_DIR})
 
 ############################################

src/org.kde.partitionmanager.appdata.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <component type="desktop">
-  <id>org.kde.PartitionManager.desktop</id>
+  <id>org.kde.partitionmanager.desktop</id>
   <metadata_license>CC0-1.0</metadata_license>
   <project_license>GPL-3.0+</project_license>
   <name>KDE Partition Manager</name>

src/org.kde.partitionmanager.xml

@@ -1,6 +1,6 @@
 <!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
 "http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
 <node>
-	<interface name="org.kde.PartitionManager">
+	<interface name="org.kde.partitionmanager">
 	</interface>
 </node>