Increase resizing handle on sidebar vertically and add auto expand to show full names
The handle with html class "ui-resizable-handle ui-resizable-e" is too small and hard to notice, so expanding the sidebar is very difficult and if you miss to the right, you close the sidebar unless you pin it, which is annoying. This makes navigating very difficult. You could expand that vertically to make it easier, as that's probably expected user behavior given that all windows on a desktop can be expanded from any point on the side. You could also add a feature to auto expand to the maximum character length of your longest table, database or file name.
Ian Burchett commented
Auto expansion would make my life much better.
Justin Fincher commented
Voted mostly for the second part. That resize handle is so small I didn't know it was there for the first few months I used Databricks. Defaulting to such narrow columns without an option to resize is just ridiculous. Who keeps all their names to like 10 characters or less?