Remove CSS class who caused long loading on Firefox Fix #2302 #2281
Remove CSS class who caused long loading on Firefox
Fix #2302 #2281

shtrom/wallabag,wallabag/wallabag,shtrom/wallabag,X-dark/wallabag,pmichelazzo/wallabag,egilli/wallabag,shtrom/wallabag,X-dark/wallabag,shtrom/wallabag,egilli/wallabag,pmichelazzo/wallabag,pmichelazzo/wallabag,wallabag/wallabag,X-dark/wallabag,X-dark/wallabag,X-dark/wallabag,shtrom/wallabag,egilli/wallabag,wallabag/wallabag,pmichelazzo/wallabag,egilli/wallabag,egilli/wallabag,pmichelazzo/wallabag