Scroll wheel should switch between tab pages

[I3uckwheat]

Description

When having a lot of tabs open, one should be able to use their scroll wheel to switch between the tab pages when having their mouse next to the orange indicators.

Brave Version

Brave: 0.24.0
V8: 6.7.288.46
rev: 16f30f6
Muon: 7.1.4
OS Release: 4.17.2-041702-generic
Update Channel:
OS Architecture: x64
OS Platform: Linux
Node.js: 7.9.0
Tor: 0.3.3.7 (git-035a35178c92da94)
Brave Sync: v1.4.2
libchromiumcontent: 67.0.3396.103

Reproducible on current live release:
yes

Additional Information

Note location of the mouse

[jonathansampson]

I tried to be helpful and use proper terms. As it turns out, we refer to these as tab pages, tab sets, and at times tab groups. Ultimately, the component used refers to them as tab pages, so I'm reverting my edits back to what the author originally wrote--apologies :)

[I3uckwheat]

@jonathansampson I was not sure what to call them. Thanks for the info, and I'm glad i guessed right!

[bsclifton]

Closing in favor of brave/brave-browser#35