feat: Begins user profile, adds database model, need to add views / forms.

Sources/ManualDCore/Theme.swift

@@ -0,0 +1,30 @@
+import Foundation
+
+public enum Theme: String, CaseIterable, Codable, Equatable, Sendable {
+  case aqua
+  case cupcake
+  case cyberpunk
+  case dark
+  case dracula
+  case light
+  case night
+  case nord
+  case retro
+  case synthwave
+
+  public static let darkThemes = [
+    Self.aqua,
+    Self.dark,
+    Self.dracula,
+    Self.night,
+    Self.synthwave,
+  ]
+
+  public static let lightThems = [
+    Self.cupcake,
+    Self.cyberpunk,
+    Self.light,
+    Self.nord,
+    Self.retro,
+  ]
+}