feat: Code Cell UI Improvements

[davidkircos]

• [ ] When single clicking a code cell output it should strongly highlight the code cell output. (e.g. when you click code cell that outputs a dataframe or chart or wtvr else it should highlight that)
• [ ] When double clicking on a code cell output, it should open the code cell. (e.g. if you double click on a dataframe output cell it should open the code cell)
• [ ] When in a code cell, it also strongly highlights the entire output (same as the individual cell)
• [ ] When in a chart output, it also should strongly highlight the entire chart

[luke-quadratic]

updated comment for examples of how this would/should work, don't think needs to be open question as should be pretty intuitive - sufficiently valuable that I'm making this medium but shoving to the top of medium prio