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/kotaemon/pyproject.toml

@@ -26,6 +26,7 @@ dependencies = [
     "click",
     "pandas",
     "trogon",
+    "tenacity",
 ]
 readme = "README.md"
 license = { text = "MIT License" }