Ftui

BUG FIXES
- Fix 7 and 8 div by zero error

UPDATES
- Select which bots to show the cumulative profit for in the dashboard chart

**Full Changelog**: https://github.com/freqtrade/ftui/compare/0.1.4...0.1.5

BUG FIXES

* Fix regression after textual update to 0.77, raised in 5 - screen
instances in MODES are now Callables

UPDATES

* Split screens up into individual files for ease of development
* Use ScreenSuspend and ScreenResume when switching screens instead
of controlling timers of screens from the main app
* General tidying

**Full Changelog**: https://github.com/freqtrade/ftui/compare/0.1.3...0.1.4

Minor updates:
* Pin textual to <0.77 to avoid startup crash
* Improved CI to catch dependency update problems eventually

Minor updates:

- Add number of orders in the open trades dashboard if using position adjustment
- Fix per bot General tab ROI output

**Full Changelog**: https://github.com/freqtrade/ftui/compare/0.1.1...0.1.2

Initial alpha release