updated correct code snippets

Author: Swasti Gupta

docs/MSAL_2x_Migration_Guide.md

@@ -402,30 +402,30 @@ MSALAccount *account = [application accountForIdentifier:@"accountId"
 }];
 ```
 
-Swift – Before:
+Swift – Before (Deprecated):
 ```swift
 do {
-    let account = try application.account(forIdentifier: "accountId")
+    let account = try application.account(forHomeAccountId: "homeAccountId")
     // Handle account
 } catch {
     print("Failed to get account: \(error)")
 }
 
-application.accountsFromDevice { (accounts, error) in
+application.allAccountsFilteredByAuthority { (accounts, error) in
     // Handle accounts
 }
 ```
 
-Swift – Before (Deprecated):
+Swift – After:
 ```swift
 do {
-    let account = try application.account(forHomeAccountId: "homeAccountId")
+    let account = try application.account(forIdentifier: "accountId")
     // Handle account
 } catch {
     print("Failed to get account: \(error)")
 }
 
-application.allAccountsFilteredByAuthority { (accounts, error) in
+application.accountsFromDevice { (accounts, error) in
     // Handle accounts
 }
 ```