0.9.0

This release focusses on improving the experience for new users.

• Allow poster upload via drag and drop.
• Improve explanation when creating a new Tale and adding the first slides.
• Add control points to slide boundaries to illustrate how to resize slides.

There are also a few bug fixes and improvements:

• Always show the correct cursor while resizing or moving a slide.
• Prevent an issue where text in SVGs could break keyboard navigation in presenter mode.
• Always start the presenter mode with an overview of the poster.
• Prevent a crash when deleting the last slide of a Tale.
• Fix broken theme selection in the settings dialog.