Some new features and changes

[hosseinyn]

Hi👋
I added a few new features including:

Help & Support section
Notepad
A simple web browser
A basic search system

Also made some small style adjustments and added several liminal backgrounds to the wallpaper changer.

Really enjoyed working on this project — it’s super fun and creative, props to you 🙌
Just noticed a couple of small issues, like:

• Too many <script> and inline JS blocks inside the main HTML — these could be moved to separate .js files for better structure.
• In some places, static files are directly linked from folders instead of using url_for.

Overall, if you're up for it, I’d love to keep contributing and collaborate further to improve the project together :)