1500 move datafetcher to lib react4xp

[ComLock]

Needs changes after enonic/npm-react-components#77 is released in beta

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.05%. Comparing base (0d95a05) to head (1439526).
Report is 26 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #1535       +/-   ##
===========================================
- Coverage   64.55%   54.05%   -10.50%     
===========================================
  Files          12        4        -8     
  Lines         268       74      -194     
  Branches       24        5       -19     
===========================================
- Hits          173       40      -133     
+ Misses         95       34       -61     

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[alansemenov]

I see this was done in master a while ago, so this is not strictly related to this PR, but we need to clean this up before the release:

1. Jest is configured (jest.config, package.json, /jest/ folder etc) but doesn't seem to be used.
2. Bun is configured but doesn't seem to be used
3. You are using deno for tests but you don't install deno in package.json. We need to make sure tests are run on every build (npmBuild task depends on test task in build.gradle) as we do in other projects.

[ComLock]

I see this was done in master a while ago, so this is not strictly related to this PR, but we need to clean this up before the release:

1. Jest is configured (jest.config, package.json, /jest/ folder etc) but doesn't seem to be used.

or write more tests using it

2. Bun is configured but doesn't seem to be used

or write more tests using it

3. You are using deno for tests but you don't install deno in package.json. We need to make sure tests are run on every build (npmBuild task depends on test task in build.gradle) as we do in other projects.

Deno is not a node package. Deno is a node replacement.