Implement scopes (#402)

Sources/Gravatar/Network/Services/ProfileService.swift

@@ -118,7 +118,7 @@ public struct Avatar: Decodable, Sendable {
     }
 
     public var url: String {
-        "https://gravatar.com\(imageUrl)?size=256"
+        imageUrl
     }
 }
 

Sources/GravatarUI/SwiftUI/OAuthSession/OAuthSession.swift

@@ -155,13 +155,30 @@ private struct OAuthURLParams: Encodable {
     let blogID: String
     let redirectURI: String
     let userEmail: String
+    var scope1: String
+    var scope2: String
+    var scope3: String
+
+    public enum CodingKeys: String, CodingKey, CaseIterable {
+        case clientID
+        case responseType
+        case blogID
+        case redirectURI
+        case userEmail
+        case scope1 = "scope[1]"
+        case scope2 = "scope[2]"
+        case scope3 = "scope[3]"
+    }
 
     init(email: Email, secrets: Configuration.OAuthSecrets) {
         self.clientID = secrets.clientID
         self.responseType = "code"
         self.blogID = "0"
         self.redirectURI = secrets.redirectURI
         self.userEmail = email.rawValue
+        self.scope1 = "gravatar-profile:read"
+        self.scope2 = "gravatar-profile:manage"
+        self.scope3 = "auth"
     }
 }