Redesgin ToolOperationConfig so types are known for single/multiple/custom tools (#4221)

# Description of Changes
Redesigns `ToolOperationConfig` so that the types of the functions are
always known depending on whether the tool runs on single files,
multiple files, or uses custom behaviour

frontend/src/hooks/tools/singleLargePage/useSingleLargePageOperation.ts

@@ -1,5 +1,5 @@
 import { useTranslation } from 'react-i18next';
-import { useToolOperation } from '../shared/useToolOperation';
+import { ToolType, useToolOperation } from '../shared/useToolOperation';
 import { createStandardErrorHandler } from '../../../utils/toolErrorHandler';
 import { SingleLargePageParameters, defaultParameters } from './useSingleLargePageParameters';
 
@@ -12,11 +12,11 @@ export const buildSingleLargePageFormData = (parameters: SingleLargePageParamete
 
 // Static configuration object
 export const singleLargePageOperationConfig = {
+  toolType: ToolType.singleFile,
+  buildFormData: buildSingleLargePageFormData,
   operationType: 'single-large-page',
   endpoint: '/api/v1/general/pdf-to-single-page',
-  buildFormData: buildSingleLargePageFormData,
   filePrefix: 'single_page_', // Will be overridden in hook with translation
-  multiFileEndpoint: false,
   defaultParameters,
 } as const;
 
@@ -28,4 +28,4 @@ export const useSingleLargePageOperation = () => {
     filePrefix: t('pdfToSinglePage.filenamePrefix', 'single_page') + '_',
     getErrorMessage: createStandardErrorHandler(t('pdfToSinglePage.error.failed', 'An error occurred while converting to single page.'))
   });
-};
+};