📚 Documentation: Add Astro quick start guide

[Susmita-Dey]

💭 Description

I just came across Astro quick start page and discovered that there's no such guide made yet.

Content structure:

• Create project
• Create SvelteKit project
• Install Appwrite
• Import Appwrite
• Create a login page
• All set

👀 Have you spent some time to check if this issue has been raised before?

• I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

• I have read the Code of Conduct

[Susmita-Dey]

I wanna take it this issue and work on it.

[shivanshu814]

can you assign me this issue

[petipois]

I would like to take this issue and make a quick start for astro