Refactor enums and update Interaction entity field

Moved enums to a dedicated namespace and updated references across the codebase. Renamed the `Info` field in the `Interaction` entity to `Info1`, including necessary migrations and UI adjustments. These changes improve the organization and consistency of the codebase.

FoodsharingSiegen.Contracts/Enums/UserType.cs

@@ -0,0 +1,23 @@
+namespace FoodsharingSiegen.Contracts.Enums
+{
+    /// <summary>
+    ///     The user type enum
+    /// </summary>
+    public enum UserType
+    {
+        /// <summary>
+        ///     The unverified user type
+        /// </summary>
+        Unverified = 100,
+
+        /// <summary>
+        ///     The user user type
+        /// </summary>
+        User = 200,
+
+        /// <summary>
+        ///     The admin user type
+        /// </summary>
+        Admin = 300
+    }
+}