Set default value for columns

[pavish]

Fixes #500

This PR:

• Allows setting default values to columns
• Creates DataTypeBasedInput component which re-uses much of the Cell component utilities.
  • This component will also be used with filtering and grouping
• Reorganizes column type configuration components
• Updates packages related to unit test (jest, svelte-jester, ts-jest)
• Adds svelte2tsx for making use of it's type declarations
• Simplifies SingleSelectCell

Screen.Recording.2022-04-28.at.2.48.06.AM.mov

Tips for reviewers

• This PR is wide and probably should have been multiple PRs, but for the sake of time and inter-dependency, I made all these changes in the same branch.
• The major review focus should be in /src/components/cell/ and /src/sections/table-view/header/header-cell/abstract-type-configuration/ directories.
• All other changes are related to package updates, minor refactoring, typing improvements etc.,

Note: The E2E test is commented out since it depends on #1276 to be fixed.

I intend to create a few UX tickets to sort out in the styling and UX improvements milestone

• Behavior for default value & cell entry for primary key columns without dynamic default values
• Type configuration dropdown is too large for the page, and would require a UX redesign to utilize horizontal space instead of vertical space.

Checklist

• My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the master branch of the repository
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• I added tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no
  visible errors.

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[codecov-commenter]

Codecov Report

Merging #1320 (e6fcd2d) into master (246ad98) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1320   +/-   ##
=======================================
  Coverage   93.65%   93.65%           
=======================================
  Files         114      114           
  Lines        4431     4431           
=======================================
  Hits         4150     4150           
  Misses        281      281           

Flag	Coverage Δ
pytest-backend	93.65% <ø> (ø)

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[seancolsen]

I've only given the diff a cursory skim, but I didn't notice any red flags. And I played with the new functionality and it looks good. Exciting to have this feature!

[seancolsen]

These changes also exist in #1229, where @silentninja has been planning to add the corresponding back-end changes to handle this new schema. I think for the sake of speed we ought to just merge them into master within this PR here, close #1229, and handle the necessary back-end changes independently.

[seancolsen]

I notice this pattern throughout your changes in this PR.

What's the benefit of writing

export let triggerClass: DefinedProps['triggerClass'] = '';

instead of the following?

export let triggerClass = '';

[pavish]

No additional benefit other than consistency. Since we are explicitly exporting an interface in the component, it makes sense to mention the types to all the props from that interface.