Added scrollbars to token list and enabled scrollbar fading #804

[Ullas-Aithal]

No description provided.

[ziegenberg]

Looks good to me. Does what it claims to do.

I would suggest just one small change. In my opinion, the android:scrollbarStyle should be set to outsideOverlay. It serves as a position indicator and is not intrusive. I believe the other options do not look as good). See below for a comparison.

@flocke what do you think?

outsideInset:
makes the margin of the entry cards not equally wide

insideOverlay:
makes the scroll bar appear on top of the entry cards

insideInset:
makes the margin of the entry cards not equally wide and sticks the scroll bar right up to the entry cards, leaving a wide gap to the border of the screen. that's the worst of all options.