Change message type from success to error
Change message type from success to error

See #1096
kwangkim/wallabag,freddyb/wallabag,freddyb/wallabag,harikt/wallabag,milanaleksic/wallabag,mubassirhayat/wallabag,ekospinach/wallabag,modos189/wallabag,ekospinach/wallabag,antoniosejas/wallabag,kwangkim/wallabag,milanaleksic/wallabag,wangjun/wallabag,milanaleksic/wallabag,antoniosejas/wallabag,modos189/wallabag,antoniosejas/wallabag,mubassirhayat/wallabag,ekospinach/wallabag,wangjun/wallabag,modos189/wallabag,harikt/wallabag,mubassirhayat/wallabag,kwangkim/wallabag,freddyb/wallabag,wangjun/wallabag,harikt/wallabag