Optimize re-rendering of plots

[sroy3]

There is a lot of useless re-rendering and drilling down of certain props (like the whole content of the Vega plot) that make the plots UI quite slow. It makes the resizing feature practically useless as it's almost impossible to use at times. We can definitely improve on the re-rendering to make the webview faster.

[sroy3]

Two PRs (#3337 and #3341 ) were open to optimize re-rendering. I think that there could be even more work done to optimize, but we could probably be spending an infinite amount of time on this with fewer increases in performance.

Only other thing left to close this would be cleaning up the code that update ZoomedInPlot as it's doing pretty much the same thing as the new optimization is doing.