prs on Nostr: Fixed nav bar color on login, eula, and account creation (#1361) Previously the ...

Fixed nav bar color on login, eula, and account creation (#1361)

Previously the Navigate back arrow was not visible in the entry views due to same color

<img src="https://github.com/damus-io/damus/assets/14004132/6dde8060-4b84-4ee7-b671-fcfe64edd09e"; width="400">
<img src="https://github.com/damus-io/damus/assets/14004132/67c0eb3b-7d5f-4959-97da-c6fb4e59d61d"; width="400">
<img src="https://github.com/damus-io/damus/assets/14004132/94791b10-beda-4119-af63-dc9e17937271"; width="400">
<img src="https://github.com/damus-io/damus/assets/14004132/fff1b519-476e-43b4-a732-2d3cbc53bcb9"; width="400">
<img src="https://github.com/damus-io/damus/assets/14004132/0991a296-0493-44dd-9457-14d03374bdc2"; width="400">
<img src="https://github.com/damus-io/damus/assets/14004132/65bb145c-4610-4bbb-97b2-f1cbf53a3d6e"; width="400">


fix-nav, 1 commits

https://github.com/damus-io/damus/pull/1361