Fix small color bug
Fix small color bug

There was a small bug color in Dark theme.

FreshRSS/FreshRSS,samuelstein/FreshRSS,asmundg/FreshRSS,Dolomich/FreshRSS,marienfressinaud/FreshRSS,marienfressinaud/FreshRSS,aledeg/FreshRSS,Dolomich/FreshRSS,FreshRSS/FreshRSS,superboum/FreshRSS,marienfressinaud/FreshRSS,Alkarex/FreshRSS,asmundg/FreshRSS,plopoyop/FreshRSS,Alkarex/FreshRSS,Dolomich/FreshRSS,superboum/FreshRSS,romibi/FreshRSS,aledeg/FreshRSS,romibi/FreshRSS,samuelstein/FreshRSS,romibi/FreshRSS,aledeg/FreshRSS,aledeg/FreshRSS,samuelstein/FreshRSS,FreshRSS/FreshRSS,Alkarex/FreshRSS,Alkarex/FreshRSS,superboum/FreshRSS,FreshRSS/FreshRSS,marienfressinaud/FreshRSS,asmundg/FreshRSS,romibi/FreshRSS,plopoyop/FreshRSS