Rework config UI

.gitignore

package/README

package/contents/config/config.qml

package/contents/config/main.xml

package/contents/ui/LunaIcon.qml

package/contents/ui/LunaWidget.qml

package/contents/ui/configGeneral.qml

package/contents/ui/configImage.qml

package/contents/ui/configPopup.qml

package/contents/ui/main.qml

package/po/es/plasma_applet_org.kde.userbase.plasma.luna3.po

package/po/fr/plasma_applet_org.kde.userbase.plasma.luna3.po

package/po/hr/plasma_applet_org.kde.userbase.plasma.luna3.po

package/po/nl/plasma_applet_org.kde.userbase.plasma.luna3.po

package/po/plasma_applet_org.kde.userbase.plasma.luna3.pot

package/po/ru/plasma_applet_org.kde.userbase.plasma.luna3.po

src/shadow.frag