implement new icons and page specific styles

resources/lang/de/plugin-desktop/desktop-chrome.php

resources/lang/de/plugin-desktop/desktop-edge.php

resources/lang/de/plugin-desktop/desktop-firefox.php

resources/lang/de/plugin-desktop/desktop-ie.php

resources/lang/de/plugin-desktop/desktop-opera.php

resources/lang/de/plugin-desktop/desktop-vivaldi.php

resources/less/metager/pages/all.less

resources/less/metager/pages/asso.less

resources/less/metager/pages/settings.less

resources/less/metager/pages/zitatsuche.less

resources/views/assoziator/asso.blade.php

resources/views/hilfe.blade.php

resources/views/parts/quicktip.blade.php

resources/views/settings/allSettings.blade.php

resources/views/settings/index.blade.php

resources/views/zitatsuche.blade.php