Remove unused TextWidgets.
Don't globally install color palettes only used by this application.

Ref: https://invent.kde.org/graphics/kolourpaint/-/merge_requests/79

--- CMakeLists.txt.orig	2025-08-07 03:21:56 UTC
+++ CMakeLists.txt
@@ -39,7 +39,6 @@ find_package(KF6 ${KF_MIN_VERSION} REQUIRED COMPONENTS
     WidgetsAddons
     KIO
     XmlGui
-    TextWidgets
     JobWidgets
     Crash
 )
@@ -368,7 +367,7 @@ install(FILES org.kde.kolourpaint.appdata.xml DESTINAT
 
 install(PROGRAMS org.kde.kolourpaint.desktop DESTINATION ${KDE_INSTALL_APPDIR})
 install(FILES org.kde.kolourpaint.appdata.xml DESTINATION ${KDE_INSTALL_METAINFODIR})
-install(DIRECTORY colors DESTINATION ${KDE_INSTALL_CONFDIR})
+install(DIRECTORY colors DESTINATION ${KDE_INSTALL_DATADIR}/kolourpaint)
 
 if(BUILD_DOC)
     add_subdirectory(doc)