brighter links and navbar
brighter links and navbar

Increase the brightness of links and the navbar.

Refs #15299

nuclear-wizard/moose,dschwen/moose,nuclear-wizard/moose,idaholab/moose,SudiptaBiswas/moose,lindsayad/moose,milljm/moose,milljm/moose,bwspenc/moose,lindsayad/moose,bwspenc/moose,dschwen/moose,laagesen/moose,harterj/moose,nuclear-wizard/moose,bwspenc/moose,andrsd/moose,sapitts/moose,andrsd/moose,harterj/moose,bwspenc/moose,harterj/moose,milljm/moose,laagesen/moose,laagesen/moose,SudiptaBiswas/moose,jessecarterMOOSE/moose,jessecarterMOOSE/moose,andrsd/moose,sapitts/moose,milljm/moose,SudiptaBiswas/moose,bwspenc/moose,idaholab/moose,idaholab/moose,laagesen/moose,lindsayad/moose,harterj/moose,milljm/moose,SudiptaBiswas/moose,dschwen/moose,laagesen/moose,dschwen/moose,sapitts/moose,sapitts/moose,harterj/moose,jessecarterMOOSE/moose,sapitts/moose,idaholab/moose,idaholab/moose,SudiptaBiswas/moose,andrsd/moose,dschwen/moose,lindsayad/moose,jessecarterMOOSE/moose,jessecarterMOOSE/moose,lindsayad/moose,andrsd/moose,nuclear-wizard/moose