[Mobile] Fix for ITC calendar being cutoff

[rukmini-bose]

Closes
#7661

Describe your changes:

• adds body.desktop & class to the line of code that originally fixed Time Conductor calendar popup appears cut off #7594. This fixes the issue, as it will only change the absolute positioning when in desktop but not in mobile.

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Author Checklist

• Changes address original issue?
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Reviewer Checklist

• Changes appear to address issue?
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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.39%. Comparing base (5a06b51) to head (5f427bd).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7662      +/-   ##
==========================================
- Coverage   56.68%   56.39%   -0.30%     
==========================================
  Files         672      672              
  Lines       27183    27183              
  Branches     2634     2634              
==========================================
- Hits        15409    15330      -79     
- Misses      11447    11525      +78     
- Partials      327      328       +1     

Flag	Coverage Δ
e2e-full	23.55% <ø> (-17.98%)	⬇️
e2e-stable	60.01% <ø> (+0.06%)	⬆️
unit	49.20% <ø> (-0.03%)	⬇️

see 8 files with indirect coverage changes

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[charlesh88]

We eventually need to put a task on our list to do mobile styling to the picker itself - but that's another issue. LGTM.