Bug: Issues in script.sh (Cloning, Dependency Installation, Flask Execution & S2V Extraction Path)

[SnehaChaursia]

Description

This PR addresses the issue #186 by fixing script.sh to automate the setup process as described in the README.md.

Changes:

• Cloning Issue: The script no longer clones the repository if it already exists locally.
• Dependency Installation: Added pip install -r requirements.txt to install dependencies automatically.
• S2V Model Extraction Path: Corrected the extraction path for the Sense2Vec model to backend/Gs2v_old.
• Flask Server Execution: The Flask server now starts automatically using python backend/server.py.
• README.md Update: Updated the README to reflect the correct script execution steps.

Expected Behavior (according to README)

• The script should install dependencies.
• The model should be extracted in the correct directory.
• The Flask server should be started.

Actual Behavior before Fix

• The repository is cloned again, even if it already exists.
• Dependencies are not installed.
• The Flask server does not start.
• The model is extracted incorrectly, causing errors in server.py.

Expected Outcome after Fix

• Skip cloning if the repository already exists.
• Install dependencies automatically.
• Correctly extract the S2V model into the proper directory.
• Start the Flask server automatically.

Additional Context

These fixes ensure that script.sh runs smoothly as described in the README, making it easier for users to set up the project without manual intervention.

@Aditya062003 Looking forward to your review and feedback!