Add UpdateEmail and fix docs

The last commit didn't have the CodingKeys implemented
in order to maintain the consistency of the JSON name when
renaming the property in the Swift model. This commit fixes
that.

Sources/ATProtoKit/Models/Lexicons/com.atproto/Server/AtprotoServerRevokeAppPassword.swift

@@ -17,4 +17,8 @@ import Foundation
 public struct ServerRevokeAppPassword: Codable {
     /// The name associated with the App Password.
     public let appPasswordName: String
+
+    enum CodingKeys: String, CodingKey {
+        case appPasswordName = "name"
+    }
 }

Sources/ATProtoKit/Models/Lexicons/com.atproto/Server/AtprotoServerUpdateEmail.swift

@@ -0,0 +1,24 @@
+//
+//  AtprotoServerUpdateEmail.swift
+//
+//
+//  Created by Christopher Jr Riley on 2024-02-27.
+//
+
+import Foundation
+
+/// The main data model definition for updating the user's email address.
+///
+/// - Note: According to the AT Protocol specifications: "Update an account's email."
+///
+/// - SeeAlso: This is based on the [`com.atproto.server.updateEmail`][github] lexicon.
+///
+/// [github]: https://github.com/bluesky-social/atproto/blob/main/lexicons/com/atproto/server/updateEmail.json
+public struct ServerUpdateEmail: Codable {
+    /// The email associated with the user's account.
+    public let email: String
+    /// The token that's used if the email has been confirmed. Optional.
+    ///
+    /// - Note: According to the AT Protocol specifications: "Requires a token from com.atproto.sever.requestEmailUpdate if the account's email has been confirmed."
+    public let token: String?
+}

Sources/ATProtoKit/Networking/CoreAPI/UpdateEmail.swift

@@ -0,0 +1,29 @@
+//
+//  UpdateEmail.swift
+//
+//
+//  Created by Christopher Jr Riley on 2024-02-27.
+//
+
+import Foundation
+
+extension ATProtoKit {
+    /// Updates the email address associated with the user's account.
+    ///
+    public func updateEmail(_ email: String, token: String? = nil) async throws {
+        guard let sessionURL = session.pdsURL,
+              let requestURL = URL(string: "\(sessionURL)/xrpc/om.atproto.server.updateEmail") else {
+            throw NSError(domain: "", code: -1, userInfo: [NSLocalizedDescriptionKey : "Invalid URL"])
+        }
+
+        let requestBody = ServerUpdateEmail(email: email, token: token)
+
+        do {
+            let request = APIClientService.createRequest(forRequest: requestURL, andMethod: .post, acceptValue: nil, contentTypeValue: "application/json", authorizationValue: "Bearer \(session.accessToken)")
+
+            try await APIClientService.sendRequest(request, withEncodingBody: requestBody)
+        } catch {
+            throw error
+        }
+    }
+}