chore(Lens): remove inline editor empty space

[markov00]

Summary

This PR fixes a style issue in the inline editor.
The issue is visible in the Breakdown -> Advanced configuration where the Advanced accordion retained its content space even if it was closed.
I cleaned up the style where needed, removing what looked like unnecessary applied styles (not used anymore after the changes).

I've checked both ESQL and standard Lens visualization configurations.
I've also checked the @MichaelMarcialis PR comments from here #169911 to avoid breaking the style change previously requested.

Fix #180119

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 189e64c

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
lens	1.4MB	1.4MB	-532.0B

History

• 💔 Build #209473 failed 72b229e

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@elasticmachine merge upstream

[elasticmachine]

Pinging @elastic/kibana-visualizations (Team:Visualizations)

[stratoula]

Thanx for pinging me in this review Marco and for trying to solve this bug. I found 2 problems introduced with your PR:

1. The drag and drop doesnt work ok now, it is hidden
   

2. We want the visualization configuration title to be in a fixed position and the content to scroll (check the gif below) while in your implementation the entire container scrolls.

[markov00]

Thanks stratoula, I pinged you exactly for these checks. I always forgot about the DnD, let me check also the title one.

[markov00]

replaced by #184369