fix: X axis not accepting value & Y axis only accepting value

[zoesteinkamp]

Closes #18884

These changes will fix the X axis so they will accept _value. It will fix the Y axis so it will accept values other than _values. There are end to end test testing that both the X and the Y can select all values including time, start, stop, and value.

• CHANGELOG.md updated with a link to the PR (not the Issue)
• Well-formatted commit messages
• Rebased/mergeable
• Tests pass

[121watts]

this looks solid. i would add unit tests for the reducer also.

[zoesteinkamp]

this looks solid. i would add unit tests for the reducer also.

We did try to add the unit test for the reducer, but we need to get the mocking done first, so that going to be addressed at a later date

[hoorayimhelping]

once you fix up the description, it LGTM

[hoorayimhelping]

nice! is it possible to assert that clicking it does something? maybe something we can add when we pair up on unit tests

[hoorayimhelping]

good call @121watts. we actually discussed it and looked into it and realized we'd have to do some work that might take a little while and hold this up, so we wrote it up in a ticket #19046 and are going to talk about it tomorrow when we pair up 👍