feat: Schedule: Show date and time in left column

[divyamtayal]

Fixes #5762

Short description of what this resolves:

Show Date and time in a column on the left

ScreenShots

Checklist

• I have read the Contribution & Best practices Guide.
• My branch is up-to-date with the Upstream development branch.
• The acceptance, integration, unit tests and linter pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

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[codecov]

Codecov Report

Merging #5772 (d3718c8) into development (df1d513) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           development    #5772      +/-   ##
===============================================
- Coverage        23.40%   23.39%   -0.01%     
===============================================
  Files              513      512       -1     
  Lines             5481     5436      -45     
  Branches            62       62              
===============================================
- Hits              1283     1272      -11     
+ Misses            4182     4148      -34     
  Partials            16       16              

Impacted Files	Coverage Δ
app/models/event.js	50.00% <0.00%> (ø)
app/models/session.js	10.00% <0.00%> (ø)
app/models/speaker.js	0.00% <0.00%> (ø)
app/models/social-link.js	0.00% <0.00%> (ø)
app/components/widgets/forms/link-input.js
app/models/custom-form.js	30.76% <0.00%> (+2.19%)	⬆️
app/utils/computed-helpers.js	24.13% <0.00%> (+4.57%)	⬆️

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[iamareebjamal]

Mixed 24 hour time and 12 hour time. Use general date helper with 12 hour time so it works correctly with #5748

[iamareebjamal]

Remove horizontal line and add vertical line

[mariobehling]

Please also change the following:

• Time font needs to be larger to be visible
• Use a darker gray. It is too light. Difficult to see.
• Time in left column is not in one visual line with text on the right hand side

[divyamtayal]

[divyamtayal]

@iamareebjamal Pls let me know to make any changes in UI