Feature request: Support Flatpak installation (Typora Flatpak path structure)

[Cherkah]

Description

The plugin cannot be installed on the Flatpak version of Typora (available on Flathub).

Affected versions

• Typora 1.13.4 (Flatpak)
• typora_plugin (latest)
• Fedora 44 / Flatpak 1.16.0

Problem

The Flatpak folder structure differs from the standard installation:

• Standard installation: ~/.config/Typora/
• Flatpak installation: ~/.var/app/io.typora.Typora/config/Typora/

Additionally, the application directory is read-only, and the plugin cannot write to or load from its expected paths.

Steps to reproduce

1. Install Typora via flatpak install flathub io.typora.Typora
2. Copy the plugin folder to ~/.var/app/io.typora.Typora/config/Typora/
3. Restart Typora → Plugin does not load

Expected behavior

The plugin should work with the Flatpak version, or at least provide specific documentation for Flatpak users.

Possible solutions (to be confirmed)

• Installation script that detects Flatpak environment
• Path adaptation to ~/.var/app/io.typora.Typora/
• Flatpak permission override (e.g., --filesystem=~/.config/Typora)
• Snap or AppImage alternative for sandboxed environments

Additional context

Flatpak is required on some systems, and using the RPM version is not an option (e.g., company policy, Steam Deck, immutable distributions).

Thank you for maintaining this great plugin!