remove .env file and rename projecty in pyproject

Author: gkorland

.env

@@ -1,5 +1,5 @@
 [tool.poetry]
-name = "code_graph"
+name = "code-graph-backend"
 version = "0.1.0"
 description = "code_graph is designed to help developers visualize and analyze the structure of their source code. It takes source code as input and generates a graph representation, making it easier to understand relationships and dependencies within the codebase."
 authors = ["Roi Lipman <roilipman@gmail.com>"]