Add fronted assets to gem file

Signed-off-by: Renato Carvalho <renatolz@gmail.com>
Gitignore update

Signed-off-by: Renato Carvalho <renatolz@gmail.com>
schema.rb update

Signed-off-by: Renato Carvalho <renatolz@gmail.com>
Add initial frontend files

Signed-off-by: Renato Carvalho <renatolz@gmail.com>