## Context
Related to Explorer/Notebooks - adds the source selector for query cell
within a notebook
<img width="1108" height="648" alt="image"
src="https://github.com/user-attachments/assets/d1434197-3738-41b0-a8ef-1919c91181d9"
/>
<img width="1103" height="633" alt="image"
src="https://github.com/user-attachments/assets/97f8c6a3-629d-4a41-aab4-3fdc5e8b2c7e"
/>
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added support for displaying log cells in the query editor.
* Added switching between database and log query sources.
* Log and database cells can display results as tables or charts.
* Log queries support optional row limits.
* Improved reliability when changing query settings.
* Notebook query views now default to table display when unspecified.
* **Bug Fixes**
* Log cells no longer appear blank or get omitted from notebook views.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Joshen Lim
2f89014f74