Fix tab appearing in each language
Issue #7353 added support for plugins to add a main tab in the Chamilo header, optionally.
However, there's a small issue with that in that it checks for the term in a specific language.
For example, if I install a plugin in English, enable the tab, and then switch to Spanish and try to disable the tab, it doesn't work, and then it adds a tab in Spanish. I have to disable the tab in the specific language in which I enabled it.
The check to enable/disable the tab should be based on a language-neutral item in the database.