fix(gitignore): ignore all files in www except the favicon.
fix(gitignore): ignore all files in www except the favicon.

jakobe/stencil-app,jakobe/stencil-app,OnnoGeorg/input-characters-count,seanwuapps/bl-img,seanwuapps/bl-img,seanwuapps/bl-img,jakobe/stencil-app,OnnoGeorg/input-characters-count,OnnoGeorg/input-characters-count