refactor: Retire the use of unmaintained custom-card-helpers (#1956)

- Closes #1295

src/card-controller/actions/actions-manager.ts

@@ -87,7 +87,8 @@ export class ActionsManager {
    */
   public handleCustomActionEvent = (ev: Event): void => {
     if (!('detail' in ev)) {
-      // The event may not be a CustomEvent object, see:
+      // The event may or may not be a CustomEvent object. For example, whilst
+      // this card doesn't use custom-card-helpers, embedded elements may:
       // https://github.com/custom-cards/custom-card-helpers/blob/master/src/fire-event.ts#L70
       return;
     }

src/card-controller/actions/actions/generic.ts

@@ -1,4 +1,5 @@
-import { ActionConfig, handleActionConfig } from '@dermotduffy/custom-card-helpers';
+import { handleActionConfig } from '../../../ha/handle-action';
+import { ActionConfig } from '../../../ha/types';
 import { CardActionsAPI } from '../../types';
 import { BaseAction } from './base';
 

src/card-controller/actions/factory.ts

@@ -1,6 +1,6 @@
-import { ActionConfig } from '@dermotduffy/custom-card-helpers';
 import { ActionContext } from 'action';
 import { ActionType, INTERNAL_CALLBACK_ACTION } from '../../config/types';
+import { ActionConfig } from '../../ha/types';
 import { convertActionToCardCustomAction } from '../../utils/action';
 import { CameraSelectAction } from './actions/camera-select';
 import { CameraUIAction } from './actions/camera-ui';

src/card-controller/actions/utils/execution-request.ts

@@ -1,11 +1,11 @@
-import { dispatchAdvancedCameraCardEvent } from '../../../utils/basic';
+import { fireAdvancedCameraCardEvent } from '../../../utils/fire-advanced-camera-card-event';
 import { ActionExecutionRequest } from '../types';
 
 export const dispatchActionExecutionRequest = (
   element: HTMLElement,
   request: ActionExecutionRequest,
 ) => {
-  dispatchAdvancedCameraCardEvent(element, 'action:execution-request', request);
+  fireAdvancedCameraCardEvent(element, 'action:execution-request', request);
 };
 
 export interface ActionExecutionRequestEventTarget extends EventTarget {