Bug 29571: Display all pending suggestions even if none from logged in library

Bug 29571: Display all pending suggestions even if none from logged in library

The number of pending suggestions was only displayed if there are pending
suggestions at the logged in library.

Test plan:
Login at CPL
Create a suggestion (ASKED) for another library
=> Without this patch there is nothing on the mainpage
=> With this patch applied you will see info about pending suggestions:

"Suggestions pending approval: Centerville: 0 / All libraries: 1"

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: ThibaudGLT <thibaud.guillot@biblibre.com>
Signed-off-by: Andreas Roussos <a.roussos@dataly.gr>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>