fix: resolve cyclic import with outgoing message type

avatar placeholder unit test now runs

.eslintrc.js

@@ -79,7 +79,7 @@ module.exports = {
     // make imports without file extensions
     'import/extensions': ['warn', 'never'],
 
-    // NOTE Remove this line when debugging cyclic dependencies
+    // NOTE Comment out this line when debugging cyclic dependencies
     'import/no-cycle': 'off',
 
     // Prettier overrides:

ts/session/messages/outgoing/ContentMessage.ts

@@ -1,6 +1,6 @@
-import { Message } from '.';
 import { SignalService } from '../../../protobuf';
 import { TTL_DEFAULT } from '../../constants';
+import { Message } from './Message';
 
 export abstract class ContentMessage extends Message {
   public plainTextBuffer(): Uint8Array {

ts/session/messages/outgoing/index.ts

@@ -1,6 +1,5 @@
+import { ContentMessage } from './ContentMessage';
+import { DataMessage } from './DataMessage';
 import { Message } from './Message';
 
-export * from './ContentMessage';
+export { ContentMessage, DataMessage, Message };
-export * from './DataMessage';
-
-export { Message };