Report Builder Left Panel should be adjustable

StevenK

The left panel that designates the slides in the Report Builder should be adjustable. We can fit ~28 characters in the panel which makes it difficult to write titles for multiple slides. There is a lot of white space between the chart and the left panel on a full HD monitor meaning there would not be any impact to the builder itself if the panel could be adjusted for size so users could see beyond the character limit currently set.