UI Update Comes Too Late After a Transfer is Settled

[ovitrif]

Description

One thing I noticed is that it takes a bit too much to update the banners and the "Incoming transfer" UI.

Not sure what we're basing these off in Android but iOS seems faster to update them.

We should foresee an optimisation to get Android on same performance level with iOS in this regard.

Previews

To Spending	To Savings
lateUpdateToLN.mp4	lateUpdateFromLN.mp4

Note how I have to pull-to-refresh to get the UI to cleanup the banners (same goes for the "Incoming Transfer".

It should happen automatically, not having to do a manual refresh.

Originally posted by @ovitrif in #501 (review)

[ovitrif]

While at it, we could also address the nit comments on PR #501:

1. feat: Transfer banners #501 (comment)
2. feat: Transfer banners #501 (comment)
3. feat: Transfer banners #501 (comment)
4. feat: Transfer banners #501 (comment)
5. feat: Transfer banners #501 (comment)