chore: remove sql query from sql chart view

[joaoviana]

Closes: #11277

Description:

Demo:

https://github.com/user-attachments/assets/435252ca-186f-4442-8d53-bf76bcc21a7b

Also made a small improvement with the chart unmounted when the tab changed

Reviewer actions

• [ ] I have manually tested the changes in the preview environment
• [ ] I have reviewed the code
• [ ] I understand that "request changes" will block this PR from merging

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[lightdash-bot]

:tada: This PR is included in version 0.1236.1 :tada:

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