[BUGFIX] Test property of the sidebar to set map position
[BUGFIX] Test property of the sidebar to set map position

ffrgb/meshviewer,xf-/meshviewer-1,Freifunk-Rhein-Neckar/meshviewer,rubo77/meshviewer-1,xf-/meshviewer-1,freifunkMUC/meshviewer,Freifunk-Rhein-Neckar/meshviewer,Freifunk-Troisdorf/meshviewer,FreifunkMD/Meshviewer,FreifunkBremen/meshviewer-ffrgb,Freifunk-Rhein-Neckar/meshviewer,Freifunk-Troisdorf/meshviewer,rubo77/meshviewer-1,hopglass/ffrgb-meshviewer,freifunkMUC/meshviewer,FreifunkBremen/meshviewer-ffrgb,hopglass/ffrgb-meshviewer,ffrgb/meshviewer,FreifunkMD/Meshviewer