feat(app): add gradient scrim to ODD protocol command list

[ncdiehl11]

closes RQA-1630

Overview

To indicate that the RunningProtocolCommandList on ODD is not scrollable, designs specify a gradient scrim at the bottom of the list. Here, I add a sibling component that occupies that same space as the command list and provides this gradient scrim.

Test Plan

on physical ODD:

• verify that scrim is present at the bottom of the command list and does not affect functionality of buttons.

Changelog

• add placeholder Flex to provide scrim at bottom of running protocol command list

Risk assessment

low

[codecov]

Codecov Report

Merging #14232 (c0cfc06) into chore_release-7.1.0 (5fc0e29) will decrease coverage by 0.01%.
Report is 5 commits behind head on chore_release-7.1.0.
The diff coverage is n/a.

Additional details and impacted files

@@                   Coverage Diff                   @@
##           chore_release-7.1.0   #14232      +/-   ##
=======================================================
- Coverage                70.38%   70.38%   -0.01%     
=======================================================
  Files                     2513     2513              
  Lines                    71333    71335       +2     
  Branches                  9030     9032       +2     
=======================================================
+ Hits                     50211    50212       +1     
  Misses                   18917    18917              
- Partials                  2205     2206       +1     

Flag	Coverage Δ
app	67.49% <ø> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
app/src/pages/OnDeviceDisplay/RunningProtocol.tsx	58.92% <ø> (ø)

... and 1 file with indirect coverage changes

[koji]

🥇
Mel will be happy for this!