#359 - Handle metadata for all children of a list field

[lmcorreia]

- Summary

• Closes Only partial relation metadata available on list previews #359

- Test plan

• I know, no excuses for not writing any tests but I ended up having to test it all manually anyway in my use case. Adding, removing and updating any child of the list works, there are no incompatibilities with the current version, nothing needs to be changed in the docs (they don't go very deep into the relation widget anyway - room for improvement in another contribution), now works as expected. If you did the setup to confirm the bug exists (see Only partial relation metadata available on list previews #359), just adding, editing and removing entries in the list field should be enough to confirm that the metadata now comes as expected.

- Description for the changelog

• Handle metadata for all children of a list field

- A picture of a cute animal (not mandatory but encouraged)

[lmcorreia]

Sorry, just noticed a little screw up in the diff from screwing around with values, fixing it

[lmcorreia]

^ Now we're good :)

[Benaiah]

LGTM, just remove the webpack footer.

[Benaiah]

Looks like these lines were left in inadvertently.

[josephearl]

@Benaiah @lmcorreia webpack footer removed

Webpack footer has been removed

[josephearl]

LGTM

[lmcorreia]

Sorry, must have been my build settings. Thanks for the commit, @josephearl