Update V1.4.1 - Light theme and bugfixes

Hello everyone! Here's a quick update which fixes some bugs with the last major update, and also fixes issues for light theme users. Here are all the changes:

• Fixed sprite output transform when using universal sprite settings
• Readded sprite output transform option when using preset blocks
• Moving and pasting over something will now override what's already there
• Added support for light theme
• Toolbar bugfix