fix: profile info banner should disappear after 3 visits, not just one

[plebeius-eth]

Currently, this banner disappears after just 1 visit, so it's too ephemeral. It should probably disappear after 3 visits. It also needs an X to close it at any time. Closable info banners are not found on old reddit, but they are a very common UI element, so it shouldn't be an issue to have them.

[plebeius-eth]

d313a68
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[estebanabaroa]

maybe it should just be a regular × (multiplication sign)

also it probably shouldnt change color on hover, that's not very reddit like. reddit links usually underline or do nothing when you hover them. I think the x should probably not hover.

[plebeius-eth]

changed it to that, it looks better

989b7bd