the keywords in pyproject.toml template have extra spaces (#2990)

reflex/.templates/jinja/custom_components/pyproject.toml.jinja2

@@ -10,7 +10,7 @@ readme = "README.md"
 license = { text = "Apache-2.0" }
 requires-python = ">=3.8"
 authors = [{ name = "", email = "YOUREMAIL@domain.com" }]
-keywords = ["reflex", "reflex-custom-components"]
+keywords = ["reflex","reflex-custom-components"]
 
 dependencies = ["reflex>=0.4.2"]