treewide: convert all LuCI-based packages to gluon-web

.../gluon-luci-theme/files/www/luci-static/gluon/cascade.css

package/gluon-luci-theme/luasrc/usr/lib/lua/gluon/luci.lua

.../luasrc/usr/lib/lua/luci/controller/admin/wifi-config.lua

...g/luasrc/usr/lib/lua/luci/model/cbi/admin/wifi-config.lua

package/gluon-setup-mode/Makefile

...-mode/files/lib/gluon/setup-mode/rc.d/S15gluon-setup-mode

...luon-setup-mode/files/lib/gluon/setup-mode/rc.d/S50uhttpd

...luon-setup-mode/files/lib/gluon/setup-mode/www/index.html

...uon-setup-mode/files/lib/gluon/setup-mode/www/luci-static

...n-setup-mode/luasrc/lib/gluon/setup-mode/www/cgi-bin/luci

package/gluon-web-admin/Makefile

.../gluon-web-admin/files/lib/gluon/web/view/admin/info.html

...uon-web-admin/files/lib/gluon/web/view/admin/upgrade.html

...admin/files/lib/gluon/web/view/admin/upgrade_confirm.html

...-admin/files/lib/gluon/web/view/admin/upgrade_reboot.html

package/gluon-web-admin/i18n/de.po

package/gluon-web-admin/i18n/fr.po

package/gluon-web-admin/i18n/gluon-web-admin.pot

...web-admin/luasrc/lib/gluon/web/controller/admin/index.lua

...b-admin/luasrc/lib/gluon/web/controller/admin/upgrade.lua