Major overhaul

- Docker buildx support in CI
- Cypress API Testing in CI
- Restructured folder layout (insert clean face meme)
- Added Swagger documentation and validate API against that (to be completed)
- Use common base image for all supported archs, which includes updated nginx with ipv6 support
- Updated certbot and changes required for it
- Large amount of Hosts names will wrap in UI
- Updated packages for frontend
- Version bump 2.1.0

backend/schema/index.json

@@ -0,0 +1,42 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "$id": "root",
+  "title": "Nginx Proxy Manager REST API",
+  "description": "This is the Nginx Proxy Manager REST API",
+  "version": "2.0.0",
+  "links": [
+    {
+      "href": "http://npm.example.com/api",
+      "rel": "self"
+    }
+  ],
+  "properties": {
+    "tokens": {
+      "$ref": "endpoints/tokens.json"
+    },
+    "users": {
+      "$ref": "endpoints/users.json"
+    },
+    "proxy-hosts": {
+      "$ref": "endpoints/proxy-hosts.json"
+    },
+    "redirection-hosts": {
+      "$ref": "endpoints/redirection-hosts.json"
+    },
+    "dead-hosts": {
+      "$ref": "endpoints/dead-hosts.json"
+    },
+    "streams": {
+      "$ref": "endpoints/streams.json"
+    },
+    "certificates": {
+      "$ref": "endpoints/certificates.json"
+    },
+    "access-lists": {
+      "$ref": "endpoints/access-lists.json"
+    },
+    "settings": {
+      "$ref": "endpoints/settings.json"
+    }
+  }
+}