feat: Initial purchase order views, login seems to be broken though.

Sources/App/Views/Utils/Img.swift

@@ -0,0 +1,7 @@
+import Elementary
+
+enum Img {
+  static func spinner(width: Int = 30, height: Int = 30) -> some HTML<HTMLTag.img> {
+    img(.src("/images/spinner.svg"), .width(width), .height(height))
+  }
+}