Reduced view that shows only configured pins

[andrewdavidmackenzie]

Fixes #756

[andrewdavidmackenzie]

Here are a couple of examples when there are only a few pins configured, without scroll bars.

I have an idea how to add more configured pins without switching back to one of the other views.

[codecov]

Codecov Report

Attention: Patch coverage is 12.03704% with 95 lines in your changes missing coverage. Please review.

Project coverage is 28%. Comparing base (f43b7cb) to head (8d4f656).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
src/views/layout_menu.rs	0%	42 Missing ⚠️
src/views/hardware_view.rs	0%	34 Missing ⚠️
src/file_helper.rs	0%	14 Missing ⚠️
src/piggui.rs	0%	5 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##           master   #828   +/-   ##
=====================================
- Coverage      28%    28%   -0%     
=====================================
  Files          47     48    +1     
  Lines        5925   5979   +54     
=====================================
+ Hits         1625   1626    +1     
- Misses       4300   4353   +53     

Flag	Coverage Δ
unittests	28% <13%> (-<1%)	⬇️

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