ADDED PPR CUSTOME COMMAND

[ajinkyab03]

This pull request introduces the ppr.sh script, which automates the Git workflow by combining three essential commands into one. This enhances efficiency for developers by allowing them to push changes, pull the latest updates, and rebase with the remote main branch in a single step.

Key Features:

Streamlined Workflow: Executes git push, git pull, and git rebase in sequence.
Error Handling: Provides feedback on the success or failure of each operation.

Usage: To utilize this script, run:

./ppr.sh

[PranavG1203]

Check if the rebase command works properly with all exceptions and errors an lets the user know about the erros