[Regression] Implement a system to programmatically highlight a portion of a plot #448
Description
Problem this feature should fix
Since #446, it's not possible to highlight a portion of a graph through code. This was possible before, due to internal modifications we made to ImGui. Since we decided to keep ImGui "vanilla", this feature isn't available anymore.
Expected solution
We should re-implement this feature without modifying ImGui. This could be through the addition of a third party library for plotting (such as implot), or through modification to OvUI to find a workaround to instruct ImGui to highlight a section of the graph (could be achieved by tricking the io.MousePos temporarily, assuming we are able to retrieve the position/rect of the line to highlight).