[BUGFIX] Fullscreen icon switch
[BUGFIX] Fullscreen icon switch

ffrgb/meshviewer,Freifunk-Troisdorf/meshviewer,FreifunkMD/Meshviewer,Freifunk-Rhein-Neckar/meshviewer,freifunkMUC/meshviewer,FreifunkBremen/meshviewer-ffrgb,Freifunk-Rhein-Neckar/meshviewer,FreifunkBremen/meshviewer-ffrgb,Freifunk-Rhein-Neckar/meshviewer,Freifunk-Troisdorf/meshviewer,ffrgb/meshviewer,freifunkMUC/meshviewer,FreifunkMD/Meshviewer