feat(app): Add LPC redesigned "Before Beginning" step view

[mjhuff]

Closes EXEC-1124

Overview

Adds the new "Before Beginning" view to LPC. Very straightforward, only one real thing worth mentioning:

This requires updating the DescriptionContent molecule to support special message prop styling, because the string used in message may contain special HTML tags that require special parsing (in this instance, using block tags as <p> elements). The general pattern we have used in the past is to allow message-esque props to support a string or a ReactNode, but if we'd rather just use ReactNode, I'm amenable to that.

Test Plan and Hands on Testing

• See screenshot.
• Covered by added testing.

Changelog

• Added updated "Before Beginning" step to LPC.

Risk assessment

low, just copy changes

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 75 lines in your changes missing coverage. Please review.

Project coverage is 24.75%. Comparing base (6546cd4) to head (ef24d80).
Report is 3 commits behind head on edge.

Files with missing lines	Patch %	Lines
...sms/LabwarePositionCheck/steps/BeforeBeginning.tsx	0.00%	42 Missing ⚠️
...nisms/LabwarePositionCheck/LPCContentContainer.tsx	0.00%	13 Missing ⚠️
...rganisms/LabwarePositionCheck/LPCRobotInMotion.tsx	0.00%	11 Missing ⚠️
...molecules/InterventionModal/DescriptionContent.tsx	0.00%	7 Missing ⚠️
...organisms/LegacyLabwarePositionCheck/CheckItem.tsx	0.00%	1 Missing ⚠️
...s/LegacyLabwarePositionCheck/IntroScreen/index.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             edge   #17584      +/-   ##
==========================================
- Coverage   25.65%   24.75%   -0.90%     
==========================================
  Files        2840     2841       +1     
  Lines      218569   218645      +76     
  Branches    17942    17943       +1     
==========================================
- Hits        56068    54132    -1936     
- Misses     162486   164499    +2013     
+ Partials       15       14       -1     

Flag	Coverage Δ
app	2.51% <0.00%> (-0.92%)	⬇️

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

Files with missing lines	Coverage Δ
...organisms/LegacyLabwarePositionCheck/CheckItem.tsx	0.00% <0.00%> (ø)
...s/LegacyLabwarePositionCheck/IntroScreen/index.tsx	0.00% <0.00%> (ø)
...molecules/InterventionModal/DescriptionContent.tsx	0.00% <0.00%> (ø)
...rganisms/LabwarePositionCheck/LPCRobotInMotion.tsx	0.00% <0.00%> (ø)
...nisms/LabwarePositionCheck/LPCContentContainer.tsx	0.00% <0.00%> (ø)
...sms/LabwarePositionCheck/steps/BeforeBeginning.tsx	0.00% <0.00%> (ø)

... and 31 files with indirect coverage changes

[sfoster1]

Looks good to me. I kind of hate typeof but I guess there's not much else we can do.