[RFE] increase rows per page on host queries

[jbastian]

Is your feature request related to a problem? Please describe.
When searching for a system in Beaker, the results are limited to 20 rows. This leaves a lot of unused white space (on my monitor at least), and it's painfully slow clicking from one page to the next to look at all the systems.

Describe the solution you'd like
Increase the rows per page and/or make it customizable.

Describe alternatives you've considered
The bkr command line tool can list 1000s of systems, but entering raw hostRequires XML on the command line is not user friendly.

[jbastian]

Thanks to @wackrat for finding the relevant code:

https://github.com/beaker-project/beaker/blob/beaker-28.0/Server/bkr/server/controllers.py#L300

If we can adjust the limit=20 here, and for the similar queries for "Free" and "Available" and so on, that would be nice.

[StykMartin]

I believe that this change is out of the scope for LTS.

[StykMartin]

So, the code behind it will be irrelevant. However, we will need to get pagination on the new Beaker UI.
@renanrodrigo

[renanrodrigo]

Doable. PatternMAGICfly even has the components for that.