refactor(web): remove some aliases

This is a follow-up of review comments in #15401.
- rename `DefaultWorker` → `Worker`
- rename `BUTTON_CLASSES` → `buttonClassNames`
Both exports now also match the filename.

Follow-up-of: #15401
Test-bot: skip

Author: ermshiperete

web/src/engine/predictive-text/worker-main/src/web/index.ts

@@ -1,5 +1,5 @@
 export { LMLayer } from '../lmlayer.js';
-export { DefaultWorker as Worker } from './worker.js'; // TODO: eliminate rename
+export { Worker } from './worker.js';
 export { SourcemappedWorker } from './sourcemappedWorker.js';
 
 export interface WorkerFactory {

web/src/engine/predictive-text/worker-main/src/web/worker.ts

@@ -1,9 +1,9 @@
 import { unwrap } from '../unwrap.js';
 import { LMLayerWorkerCode, LMLayerWorkerSourcemapComment } from "@keymanapp/lm-worker/worker-main.wrapped.min.js";
 
-export class DefaultWorker {
+export class Worker {
   static constructInstance(): Worker {
-    return new Worker(this.asBlobURI(LMLayerWorkerCode));
+    return new globalThis.Worker(this.asBlobURI(LMLayerWorkerCode));
   }
 
   /**

web/src/engine/src/osk/buttonClassNames.ts

@@ -2,7 +2,7 @@
 /**
  * Maps 'sp' properties on a touch-layout spec to their corresponding CSS class names.
  */
-export const BUTTON_CLASSES = [
+export const buttonClassNames = [
   'default',
   'shift',
   'shift-on',

web/src/engine/src/osk/keyboard-layout/oskKey.ts

@@ -1,9 +1,8 @@
 import { ActiveKey, ActiveSubKey, ButtonClass, ButtonClasses, DeviceSpec } from 'keyman/engine/keyboard';
 
 // At present, we don't use @keymanapp/keyman.  Just `keyman`.  (Refer to <root>/web/package.json.)
-import { specialCharacters as specialChars } from '../specialCharacters.js'; // TODO: eliminate 'as specialChars'
-import { BUTTON_CLASSES as buttonClassNames } from '../buttonClassNames.js'; // TODO: eliminate 'as buttonClasNames'
-
+import { specialCharacters } from '../specialCharacters.js';
+import { buttonClassNames } from '../buttonClassNames.js';
 import { KeyElement } from '../keyElement.js';
 import { VisualKeyboard } from '../visualKeyboard.js';
 import { getTextMetrics } from './getTextMetrics.js';
@@ -42,7 +41,7 @@ export function renameSpecialKey(oldText: string, vkbd: VisualKeyboard): string
      // do nothing.
  }
 
- const specialCode = specialChars[oldText as keyof typeof specialChars];
+ const specialCode = specialCharacters[oldText as keyof typeof specialCharacters];
  const specialCodePUA = 0XE000 + specialCode;
 
  return specialCode ?
@@ -52,7 +51,7 @@ export function renameSpecialKey(oldText: string, vkbd: VisualKeyboard): string
 
 export abstract class OSKKey {
   // Only set here to act as an alias for code built against legacy versions.
-  static readonly specialCharacters = specialChars;
+  static readonly specialCharacters = specialCharacters;
 
   static readonly BUTTON_CLASSES = buttonClassNames;