Update app.py

Add support for environment variables using a .env file

Using a .env File (Recommended for Development):
- Created a .env file in the root directory to manage environment variables for development.
- Added CLAUDE_API_KEY to the .env file.

Instructions:
1. Add your environment variable to the file:
   CLAUDE_API_KEY=your_api_key_here

2. Install the python-dotenv package to read the .env file in your Python script:
   pip install python-dotenv

3. Updated the script to load the environment variables with the following code

app.py

@@ -5,14 +5,18 @@
 import requests, random
 from streamlit_lottie import st_lottie
 from streamlit_option_menu import option_menu
-
+import os
+from dotenv import load_dotenv
 #AI Integration
 import anthropic
 
-# Retrieve API key from Hugging Face secrets
-claude_api_key = "api-key"
+#Changes made by --Charvi Arora 
+#Added security
+# Load environment variables from .env file
+load_dotenv()
+# Retrieve the API key
+claude_api_key = os.getenv("CLAUDE_API_KEY")
 
-# Initialize ClaudeAI client
 client = anthropic.Client(api_key=claude_api_key)
 
 def anxiety_management_guide(mood, feeling_description, current_stress_level, recent_events):