mintinstall: search is by default limited to the active category

[InfoLibre]

When I choose a category and then, search a software by its name, in the search bar, I can't find the software if it's not in the active category. I must go back to the home page of mintinstall and search again.
By default, search in the search bar depends from the active category. One must click on the icon on the search bar to have a normal search. Nobody will find and understand this. It's hidden and too complicated. Could you activate by default the plain search, even when we are in a category?
See #401