feat: Begins migrating views from leaf to elementary

Sources/App/Views/Users/UserForm.swift

@@ -0,0 +1,78 @@
+import Elementary
+import ElementaryHTMX
+
+struct UserForm: HTML, Sendable {
+  let context: Context
+
+  var content: some HTML {
+    form(
+      .id("user-form"),
+      .class("user-form"),
+      .hx.post(context.targetURL),
+      .hx.pushURL(context.pushURL),
+      .custom(name: "hx-on::after-request", value: "if(event.detail.successful) this.reset(); toggleContent('form');")
+    ) {
+      input(.type(.text), .id("username"), .name("username"), .placeholder("Username"), .autofocus, .required)
+      br()
+      if context.showEmailInput {
+        input(.type(.email), .id("email"), .name("email"), .placeholder("Email"), .required)
+        br()
+      }
+      input(.type(.password), .id("password"), .name("password"), .placeholder("Password"), .required)
+      br()
+      if context.showConfirmPassword {
+        input(.type(.password), .id("confirmPassword"), .name("confirmPassword"), .required)
+        br()
+      }
+      input(.type(.submit), .value(context.buttonLabel))
+    }
+  }
+
+  enum Context {
+    case create
+    case login(next: String?)
+
+    var showConfirmPassword: Bool {
+      switch self {
+      case .create: return true
+      case .login: return false
+      }
+    }
+
+    var showEmailInput: Bool {
+      switch self {
+      case .create: return true
+      case .login: return false
+      }
+    }
+
+    var pushURL: Bool {
+      switch self {
+      case .create: return false
+      case .login: return true
+      }
+    }
+
+    var buttonLabel: String {
+      switch self {
+      case .create:
+        return "Create"
+      case .login:
+        return "Login"
+      }
+    }
+
+    var targetURL: String {
+      switch self {
+      case .create:
+        return "/users"
+      case let .login(next: next):
+        let path = "/login"
+        if let next {
+          return "\(path)?next=\(next)"
+        }
+        return path
+      }
+    }
+  }
+}