Version number obscured if recent files have long names

[RailKill]

Version: 2.2.2
Severity: Low

• The version number is obscured by long file names. Adding some spacing should do the trick.
• Long filenames also impact the ability to create new tabs. There is no limit, so it can be so wide that it pushes the new tab icon out of the window. Consider truncation.

[RailKill]

Filenames are truncated to default of 48 characters long (see const MAX_FILENAME_LENGTH = 48 in Scripts/Control.gd in both recent file container and tab bar.