Translation improvements

By: anubisK
Ref. rathena@c115fea
Splited navbar from header... it was difficult to find where it was to fix the lang issue, so I prefear to change the place. Skip if not needed.
Merge pull request #24 from anubisK/split_bar

Moved navbar
Merge pull request #22 from Freyja-Folkvangr/spanish-translation

Translation improvements
Theme Selector
(Credits to HerculesWS/FluxCP:a1f4227)

Signed-off-by: Akkarinage <akkarin@rathena.org>
Removing previously integrated theme selector as it appears to be causing too many issues.