[Feature]: List data retaining functionalities

[SayanShankhari]

📨 Contact Details

No response

📝 Checklist

• Can you reproduce the problem in safe mode?
• Are you running the latest version?
• Did you check the debugging guide?
• Are you reporting to the correct repository?
• Did you perform a cursory search?
• Is this something you can debug and fix? Send a pull request! Bug fixes and documentation fixes are welcome.
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• Does this occur on iOS, Android or both?
• Are you using Mac, Linux or Windows?

📋 Steps To Reproduce

1. retain all from given list
2. retain all from list in given range

📃 Relevant log output

✔️ Expected Behavior

retain all (original List, retain List)
retain all in range (original List, from Index, to Index)

❗ Current Behavior

N/A

🏷️ Version

0.1 (Default)

🖳 What Operating System are you using?

Linux

♻️ What compiler are you using?

GCC

⌨ What terminal are you using?

Kitty

📜 Code of Conduct

• 🤝 I agree to follow this project's Code of Conduct