Implement header buttons

[rin-st]

Portfolio, Builders, Submissions Review, Activity. Possibly different PRs

#23 (comment)

[rin-st]

@carletex, are there any changes for these buttons? As I remember, you told about the user dashboard. Or is it the same as portfolio?

[carletex]

user dashboard. Or is it the same as portfolio?

Yep!

Let's do the same as in v1 for now

[Pabl0cks]

Now that #42 is merged, we could redirect the Portfolio link to the connected address builders page