[ENH] Marketplace should start with "All" and not prefilter on initial view

[iJungleboy]

Describe the enhancement

ATM the marketplace begins with showing only Open Source and Module.

I believe that many users will not realize that there is more to find - especially when they would search for a word.

The default setting should be All on both Category and Type

[sbwalker]

The Marketplace was designed around an App Store model where users discover/install modules and themes directly through the Oqtane application itself (ie. in Module Management and Theme Management). The Marketplace site (https://www.oqtane.net) was primarily intended to be an administrative site where developers can manage their products. However, the recent changes which allow developers to provide more details for their products means that the Marketplace site is becoming more consumer oriented. The addition of an "all" category and type does make sense in this context.