* improve team members and repositories settings UI

* use tab on team pages

* add default description on team members and repos

* add blank on numbers and texts

* improve translation

This commit improves templates readability, since all of them use consistent
indent with all template command blocks indented too.

1. Indents both HTML containers such as <div>, <p> and Go HTML template blocks
   such as {{if}} {{with}}

2. Cleans all trailing white-space

3. Adds trailing last line-break to each file