New 'Transfer' design and small other changes

[BreadJS]

Abstract

I've changed the design of the sending page to make it more responsive, and have a cleaner UI.

What does this PR address?

MPW was not really responsive for other devices and lacks a good design (IMO). My intend is to redesign MPW for a better look and also make it as responsive as possible for every device.

What features or improvements were added?

1. New Transfer
   • Menu animates from bottom to top when clicking on the Withdraw button
   • Simple design (removed the advanced features for now, they will be add back in a future PR)
   • Removed Send menu from navigation bar
2. Other changes
   • Removing dotted outline on textboxes
   • Changed Dashboard height to remove empty space
   • Added an extra medium size button

How does this benefit users?

A better design will lure more users in using MPW. This also applies for making the site more responsive.

PIVX Address

DQnmBB6b6xLdjt2kqfgDWJGZGoMSATp1xS

[Duddino]

The "Transaction sent" alert only lasts for a very short amount of time, can you increase that?
Other than that I really like how the PR is progressing

[JSKitty]

tACK - Brilliant design upgrade, HUGE enhancement to MPW usability, and starting from this PR, I believe it's now safe to consider MPW as "bare minimum READY" for mobile.

Let the mobile race begin. 🚀

[Liquid369]

tACK bb5bc50
To those following and concerned, the export private key is working here, so will be functional after merging
LGTM!

[Liquid369]

tACK

[JSKitty]

Final tACK via testnet.