Make the number of communities on the home page configurable #1749
Description
Is your feature request related to a problem? Please describe.
In DSpace 7, there are only 5 top-level communities listed on the home page, https://demo7.dspace.org/home. When the user clicks on the next page they see the next 5 communities. This is too slow.
In DSpace 6 XMLUI, all the top-level communities are listed on the home page, https://demo.dspace.org/xmlui/, which helps the user immediately find the right one. Administrators, too, want to see the entire list without multiple clicks.
Describe the solution you'd like
One solution would be to make the number of communities per page configurable with a number, or perhaps, an option, "all." Since the time to load the home page in DSpace 6 XMLUI is acceptable, I don't think a large number or "all" would be a problem and would certainly be less time than waiting for multiple pages.
Describe alternatives or workarounds you've considered
A clear and concise description of any alternative solutions or features you've considered.
Additional context
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