v0.1.32

This is effectively a pre-release of 1.0.0, which will be shipped with no additional features after I’ve spent some time testing this release.

Users can now choose between Markdown or MDX as the default filetype for new files. This is configurable in the global settings, and can be overridden on a per-project and per-collection basis.
Files now auto-save every ten seconds regardless of whether the user has stopped typing. This ensures content is written to disk when typing in flow-state. The existing autosave-after-cease-typing functionality still works as before.
Fixed minor UI inconsistencies.
Extensive refactoring & performance improvements under-the-hood.