Normalize package naming

ts/protobuf/index.ts

@@ -0,0 +1,3 @@
+import { signalservice as SignalService } from './SignalService';
+
+export { SignalService };

ts/styleguide/StyleGuideUtil.ts

@@ -21,7 +21,7 @@ import * as HTML from '../html';
 
 import * as Attachment from '../../ts/types/Attachment';
 import * as MIME from '../../ts/types/MIME';
-import { signalservice as SignalService } from '../../ts/protobuf/SignalService';
+import { SignalService } from '../../ts/protobuf';
 
 // TypeScript wants two things when you import:
 //   1) a normal typescript file

ts/test/types/Attachment_test.ts

@@ -6,7 +6,7 @@ import { assert } from 'chai';
 
 import * as Attachment from '../../types/Attachment';
 import * as MIME from '../../types/MIME';
-import { signalservice as SignalService } from '../../protobuf/SignalService';
+import { SignalService } from '../../protobuf';
 // @ts-ignore
 import { stringToArrayBuffer } from '../../../js/modules/string_to_array_buffer';
 

ts/types/Attachment.ts

@@ -2,10 +2,10 @@ import is from '@sindresorhus/is';
 import moment from 'moment';
 
 import * as GoogleChrome from '../util/GoogleChrome';
-import { saveURLAsFile } from '../util/saveURLAsFile';
-import { arrayBufferToObjectURL } from '../util/arrayBufferToObjectURL';
 import * as MIME from './MIME';
-import { signalservice as SignalService } from '../protobuf/SignalService';
+import { arrayBufferToObjectURL } from '../util/arrayBufferToObjectURL';
+import { saveURLAsFile } from '../util/saveURLAsFile';
+import { SignalService } from '../protobuf';
 
 export type Attachment = {
   fileName?: string | null;