Add SwiftUI Gorilla iOS app

[vsvaidya27]

Created Gorilla iOS app in Swift UI so users can have the Gorilla website as an app.

[Fanjia-Yan]

Hey Varun,

Thank you for the contribution. Could you write documentation on how to deploy and reproduce the Gorilla IOS app?

[A1uCard8]

Hi Varun, I was also signed up to work on the Gorilla iOS app. Since you already made a pull request I would love to work on this task with you. I will email you.

[vsvaidya27]

In order to reproduce the iOS app locally on a simulator, make sure to have done the following:

 Mac System: Running macOS (preferably the latest version).

 Xcode Installed: Install the latest version, Xcode 16, although a previous version should be okay.

Once you clone my fork, inside the gorilla folder, you should see a folder named GorillaLLMRenderWeb which contains the Xcode project (GorillaLLMRenderWeb.xcodeproj). Open the project in Xcode by double-clicking on the .xcodeproj file.

Select a Simulator: In Xcode, select a suitable iPhone simulator in the toolbar. The latest version, such as iPhone 16 Pro works just fine.

Build and Run the App: Click on the "Play" button at the top left corner of Xcode to build and run the app on the selected simulator. You can also use the shortcut Cmd + R to do this.

Then, you should see the simulator pop up on your screen; it looks like an iPhone. The simulation will load and the app will pop up on your screen. If not, click the app icon on the device that has no logo and says GorillaLLM...

[ShishirPatil]

Thank you for the PR @vsvaidya27 ! @HuanzhiMao once we have this tested, we should think if this should be part of the gh-pages branch, or maybe even it deserves it's own repo in github/gorilla-llm.