Improve kotaemon based on insights from projects (#147)

- Include static files in the package.
- More reliable information panel. Faster & not breaking randomly.
- Add directory upload.
- Enable zip file to upload.
- Allow setting endpoint for the OCR reader using environment variable.

libs/ktem/pyproject.toml

@@ -3,7 +3,7 @@ requires = ["setuptools >= 61.0"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools]
-include-package-data = false
+include-package-data = true
 packages.find.include = ["ktem*"]
 packages.find.exclude = ["tests*", "env*"]