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

frontend/js/app/nginx/access/form/item.ejs

@@ -0,0 +1,10 @@
+<div class="col-sm-6 col-md-6">
+    <div class="form-group">
+        <input type="text" name="username[]" class="form-control" value="<%- typeof username !== 'undefined' ? username : '' %>">
+    </div>
+</div>
+<div class="col-sm-6 col-md-6">
+    <div class="form-group">
+        <input type="password" name="password[]" class="form-control" placeholder="<%- typeof hint !== 'undefined' ? hint : '' %>" value="">
+    </div>
+</div>