Bug 25887: Keep library filter on the fund list view

Bug 25887: Keep library filter on the fund list view

The problem:
When filtering funds by library, the pull down for libraries resets to "empty" when the page is reloaded,
although the filter criteria is visible in the URL.

Test plan:
Create a fund for library A
Create a fund for library B
Go to the fund list view
=> All funds are listed
Select library A in the library filter, click "Go"
=> Funds for library A are listed
=> Library filter has "library A" selected
Edit fund for library B
=> The edit form has "library B" selected

Signed-off-by: Holly Cooper <hc@interleaf.ie>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>