[BUG]: ide completions for expr namespaces (#2374)

closes #2366


<img width="1030" alt="image"
src="https://github.com/Eventual-Inc/Daft/assets/21327470/52ee31e1-e890-4c02-b0f0-7cfb0dc44828">

daft/expressions/expressions.py

@@ -27,11 +27,9 @@
 
 if TYPE_CHECKING:
     from daft.io import IOConfig
-
 # This allows Sphinx to correctly work against our "namespaced" accessor functions by overriding @property to
 # return a class instance of the namespace instead of a property object.
-property = property
-if os.getenv("DAFT_SPHINX_BUILD") == "1":
+elif os.getenv("DAFT_SPHINX_BUILD") == "1":
     from typing import Any
 
     # when building docs (with Sphinx) we need access to the functions