aurorae: Ensure that the plugin so file name matches plugin id

KPluginMetaData::findPluginById() in KF6 uses the file name to find plugins.

src/plugins/kdecorations/aurorae/src/CMakeLists.txt

@@ -13,7 +13,10 @@ set(kwin5_aurorae_PART_SRCS
 )
 
 add_library(kwin5_aurorae MODULE ${kwin5_aurorae_PART_SRCS})
-set_target_properties(kwin5_aurorae PROPERTIES LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin/org.kde.kdecoration2/")
+set_target_properties(kwin5_aurorae PROPERTIES
+    LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin/org.kde.kdecoration2/"
+    LIBRARY_OUTPUT_NAME "org.kde.kwin.aurorae"
+)
 
 target_link_libraries(kwin5_aurorae
     KDecoration2::KDecoration

src/plugins/kdecorations/aurorae/src/aurorae.json

@@ -1,9 +1,4 @@
 {
-    "KPlugin": {
-        "Id": "org.kde.kwin.aurorae"
-    }, 
-    "X-KDE-PluginInfo-EnabledByDefault": true, 
-    "X-KDE-PluginInfo-Name": "org.kde.kwin.aurorae", 
     "org.kde.kdecoration2": {
         "KNewStuff": "aurorae.knsrc", 
         "defaultTheme": "kwin4_decoration_qml_plastik",