feat: watchlist for videos

[suzy-g38]

🛠️ Fixes Issue: #113

👨‍💻 Changes proposed:

I have added the watchlist feature to add a video to the watchlist and also created a separate watchList section where you can see the watchlisted videos as we see on youtube

📝 Additional Notes

There are many issues and code repetition in the codebase, which initially created some errors in my setup. Since there is no live URL for this project so I didn't conclude if the issues are showing only for my setup or not. I have raised an issue about that.

Discord username

Vizard#6025

Link to any external resources

📷 Screenshots

✔️ Check List (Check all the applicable boxes)

• [x] My code follows the code style of this project.
• [x] The title of my pull request is a short description of the requested changes.
• [x] I am a participant of GSSOC23

[suzy-g38]

@Fenrir-04 you forgot to remove level 2 from this pr.

[Fenrir-04]

@suzy-g38 I removed it earlier but I guess my wifi was not working, thanks anyway 👍

[suzy-g38]

@suzy-g38 I removed it earlier but I guess my wifi was not working, thanks anyway 👍

@Fenrir-04 no issue...thank you