It would be nice to have a search bar for all chart properties so we can quickly search a particular setting we want to edit for a chart
This is a good idea - we now have search for columns and search for chart types, so properties seems a valid addition to the functionality!
The new option for a similar purpose is "right-click" properties. This will pop up a menu that applies to the object selected in analyzer. Here is an example of right-click on the y-axis:
@Sam_Ravi We recently released new functionality that allows you to right-click on the different areas in the chart itself to get relevant chart properties. This should help make it easier to find the right chart properties!
Adding a search to chart properties is still something that we'll continue to review for a future enhancement.