Remove the box link on the home page for video tutorials

We now have the video thumbnails and the "More..." link. So its not
mainly redundant
[endlessm/eos-shell#4073]
Merge pull request #5 from endlessm/shell/4073

Remove the box link on the home page for video tutorials
Use Spanish content for Portuguese

Our Portuguese translation are not updated and would be half in
English. Spanish is a better substitute for now.

Symlinked the portuguses po file to point to the spanish location and
updated our tx config to update a dummy file with the portuguese translations.

This should all be reverted later.
[endlessm/eos-shell#4064]