Changed edit-docs from a simple wrapper script to a properly built Nix
package using makeApp, similar to how desktop and server are built.
Changes:
- Added build script to apps/edit-docs/package.json
- Created apps/edit-docs/scripts/build.ts based on desktop's build script
- Added edit-docs:build task to root package.json
- Changed flake.nix to use makeApp which:
- Builds edit-docs with all dependencies bundled
- Creates a standalone trilium-edit-docs executable
- Can be installed with 'nix profile install' and run from any directory
This makes edit-docs truly reusable - it can now be installed and run
from any project without requiring the Trilium source tree.