Fix Nested Git Repository

### We are facing issues with the repository due to the following reasons:

1. **Nested Git Repository**: The `backend/EduAid` directory contains its own `.git` folder, which is being treated as a separate Git repository inside the main repository. This causes conflicts and makes the repository structure inconsistent.

### Steps to Reproduce:

**Clone the Repository**:
```bash
git clone https://github.com/AOSSIE-Org/EduAid.git
cd EduAid
```

**Navigate to the backend folder and run the following shell script**:
```bash
./script.sh
```
**now Write the following git command***
```bash
git add .
```
**Expected Issue**

*Changes not staged for commit:
(use "git add ..." to update what will be committed)
(use "git restore ..." to discard changes in working directory)
(commit or discard the untracked or modified content in submodules)
modified: backend/EduAid (untracked content)*