Add Kirigami dependency to CMake

This had been required for a while, but the dependency was not listed in
the CMake file.

CMakeLists.txt

@@ -34,6 +34,11 @@ find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS
 
 find_package(SharedMimeInfo REQUIRED)
 
+find_package(KF5Kirigami2 ${KF5_MIN_VERSION} CONFIG)
+set_package_properties(KF5Kirigami2 PROPERTIES
+    TYPE RUNTIME
+)
+
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDECompilerSettings NO_POLICY_SCOPE)