applets/comic: Restore/Fix service type for applets

We need this for the implicit desktop to json conversion done by KPackage

applets/comic/engine/CMakeLists.txt

@@ -37,3 +37,4 @@ target_link_libraries(plasma_packagestructure_comic
     KF5::I18n
 )
 set_target_properties(plasma_packagestructure_comic PROPERTIES OUTPUT_NAME plasma_comic)
+install(FILES plasma-comic.desktop DESTINATION ${KDE_INSTALL_KSERVICETYPESDIR})

applets/comic/engine/plasma-comic.desktop

+[Desktop Entry]
+Type=ServiceType
+X-KDE-ServiceType=Plasma/Comic
+
+[PropertyDef::X-KDE-PlasmaComicProvider-SuffixType]
+Type=QString
+
+[PropertyDef::X-KDE-PluginInfo-Name]
+Type=QString
+