[EXPERIMENTAL] prototyping a next-generation cross-platform outline client with the sdk

[daniellacosse]

currently have a go web app rendering on web, android:

and apple (mac catalyst):

next steps:

• [x] add htmx to the go web app
• [x] integrate the sdk into it
• [x] add a field where we can paste in an access key
• [ ] stub out vpn platform service
• [ ] write platform service on each box