Fix for a crash that resulted from a previous crash fix

mastodon/build.gradle

@@ -13,7 +13,7 @@ android {
 		applicationId "org.joinmastodon.android"
 		minSdk 23
 		targetSdk 33
-		versionCode 106
+		versionCode 107
 		versionName "2.5.4"
 		testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 	}

mastodon/src/main/java/org/joinmastodon/android/api/session/AccountSessionManager.java

@@ -388,7 +388,7 @@ public class AccountSessionManager{
 		}
 		if(!loadedInstances){
 			loadedInstances=true;
-			maybeUpdateCustomEmojis(domains);
+			MastodonAPIController.runInBackground(()->maybeUpdateCustomEmojis(domains));
 		}
 	}