Add --config, --help, and --version flags to edit-docs

- Implement --config (-c) flag to allow custom configuration file paths.
- Add --help (-h) flag to display tool usage and available options.
- Add --version (-v) flag to display the current Trilium version.
- Update electron-start.mts to correctly pass command-line arguments to Electron.
- Synchronize edit-docs version with the root package.json via update-version.ts.
- Resolve config paths relative to the configuration file's directory.

This makes edit-docs more robust and easier to use from external projects
and immutable environments like Nix.

apps/edit-docs/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@triliumnext/edit-docs",
-  "version": "0.0.1",
+  "version": "0.101.3",
   "private": true,
   "description": "Desktop version of Trilium which imports the demo database (presented to new users at start-up) or the user guide and other documentation and saves the modifications for committing.",
   "dependencies": {