Shkarko presenterm 0.13.0

Breaking changes
- The CLI parameter to generate the JSON schema for the config file (--generate-config-file-schema) is now hidden behind a json-schema feature flag. The JSON schema file for the latest version is already publicly available at https://github.com/mfontanini/presenterm/blob/${VERSION}/config-file-schema.json, so anyone can use it without having to generate it by hand. This allows cutting down the number of dependencies in this project quite a bit (#563).
New features
- Support for slide transitions is now available (#530):
- Add fade slide transition (#534).
- Add slide horizontally slide transition animation (#528).
- Add collapse_horizontal slide transition (#560).
- Add --output option to specify the path where the output file is written to during an export (#526) - thanks @marianozunino.
- Allow specifying start/end lines in file snippet type (#565).
- Allow letting pauses become new slides when exporting (#557).
- Allow using images on right in footer (#554).
- Add max_rows configuration to cap vertical size (#531).
- Add julia language highlighting and execution support (#561).
Fixes
- Center overflow lines when using centered text (#546).
- Don't add extra space before heading if prefix in theme is empty (#542).
- Use no typst background in terminal-* built in themes (#535).
- Use std::env::temp_dir in the external_snippet test (#533) - thanks @Medovi.
- Respect extends in a theme set via path in front matter (#532).
Misc
- Refactor async renders (e.g. mermaid/typst/latex +render blocks, +exec blocks, etc) to work truly asynchronously. This causes the output to be polled faster, and causes jumping to a slide that contains an async render to take a likely negligible (but maybe noticeable) amount of time to be jumped to. This was needed for slide transitions to work seemlessly (#556).
- Get rid of textproperties (#529).
- Add links to presentations using presenterm (#544) - thanks @orhun.
Performance improvements
- A few performance improvements had to be done for slide transitions to work seemlessly:
- Pre-scale ASCII images when transitions are enabled (#550).
- Pre-scale generated images (#553).
- Cache resized ASCII images (#547).
❤️ Sponsors
Thanks to the following users who supported presenterm via a github sponsorship in this release:
- @0atman
- @orhun
- @fipoac