Fixing missing handler delivery task description

[aaronchongth]

What's new

Fixes to broken delivery task request

• re-introduced the handler field for pickup and dropoff
• reverted back to getPlace function call, but changed the implementation to return information for all types of named places
• create-task now accepts a Record<string, string> for pickup and dropoff points, as it maps the name of the waypoint to the name of the handler
• checks for valid pickup and dropoff waypoint names and handler names before triggering change, to prevent crashes in the backend
• fixed a minor typo where modifying dropoff location changes pickup locations too

Self-checks

• I have prototyped this new feature (if necessary) on Figma
• I'm familiar with and follow this Typescript guideline
• I added unit-tests for new components
• I tried testing edge cases
• I tested the behavior of the components that interact with the backend, with an e2e test

[codecov]

Codecov Report

Merging #745 (ea5550a) into main (1412804) will decrease coverage by 0.02%.
The diff coverage is 6.66%.

@@            Coverage Diff             @@
##             main     #745      +/-   ##
==========================================
- Coverage   54.52%   54.50%   -0.02%     
==========================================
  Files         263      263              
  Lines        6548     6550       +2     
  Branches      865      871       +6     
==========================================
  Hits         3570     3570              
- Misses       2838     2840       +2     
  Partials      140      140              

Flag	Coverage Δ
dashboard	18.26% <10.52%> (-0.11%)	⬇️
react-components	52.08% <0.00%> (+0.30%)	⬆️

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

Files Changed	Coverage Δ
packages/react-components/lib/place.ts	15.78% <0.00%> (+5.44%)	⬆️
...ackages/react-components/lib/tasks/create-task.tsx	2.38% <0.00%> (ø)
packages/dashboard/src/components/appbar.tsx	29.41% <10.52%> (-1.69%)	⬇️

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[Angatupyry]

LGTM!
Thanks, Aaron!