🎨 Improve LulzBot FTDI Eve Touch UI

[bmkahl]

Description

This PR updates the FTDI Eve Touch UI that the LulzBot TAZPro uses.

Requirements

Use TOUCH_UI_FTDI_EVE

Benefits

These changes make it more user friendly to use and update the look of the menus.

Configurations

Related Issues

[thinkyhead]

For some reason known only to GitHub we can't apply changes to this PR either. So, you could give me explicit read/write permission to your repository, or I'll just apply any leftover review changes immediately after merging this PR.

I went ahead and submitted a PR to @lulzbot3d over at lulzbot3d#8 based on my branch https://github.com/thinkyhead/Marlin/tree/lulzbot_fixes_PR and you can also apply those changes to your branch, which will update this PR once you push them to GitHub.

[thinkyhead]

These changes may be of interest to @marcio-cp or other Cocoa Press contributors, who might want to adopt some of the improvements for their own displays.