fix: Superset logo link when logged out (#7118)
fix: Superset logo link when logged out (#7118)

Closes #7107
airbnb/caravel,mistercrunch/panoramix,zhouyao1994/incubator-superset,mistercrunch/panoramix,apache/incubator-superset,apache/incubator-superset,mistercrunch/panoramix,airbnb/caravel,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,airbnb/superset,airbnb/caravel,apache/incubator-superset,airbnb/superset,mistercrunch/panoramix,zhouyao1994/incubator-superset,apache/incubator-superset,zhouyao1994/incubator-superset,apache/incubator-superset,airbnb/superset,airbnb/caravel,airbnb/superset