Improve spreadsheet import flow (#839)

* feat: add dropdown to worksheet selection

* feat: move revoke to separate button

* refactor: extract excel flow to separate controller and service

* chore: show spinner when uploading sheet and disable the other option

* chore: don't show "success" when canceling the import

* chore: export boolean types properly to sheets

apps/server/src/api-data/db/db.router.ts

@@ -2,18 +2,17 @@ import express from 'express';
 
 import {
   createProjectFile,
-  projectDownload,
   deleteProjectFile,
+  duplicateProjectFile,
   getInfo,
   listProjects,
-  patchPartialProjectFile,
-  previewSpreadsheet,
   loadProject,
-  duplicateProjectFile,
-  renameProjectFile,
+  patchPartialProjectFile,
   postProjectFile,
+  projectDownload,
+  renameProjectFile,
 } from './db.controller.js';
-import { uploadProjectFile, uploadSpreadsheet } from './db.middleware.js';
+import { uploadProjectFile } from './db.middleware.js';
 import {
   projectSanitiser,
   sanitizeProjectFilename,
@@ -39,6 +38,3 @@ router.put('/:filename/rename', validateProjectRename, sanitizeProjectFilename,
 router.delete('/:filename', sanitizeProjectFilename, deleteProjectFile);
 
 router.get('/info', getInfo);
-
-// TODO: validate import map
-router.post('/spreadsheet/preview', uploadSpreadsheet, previewSpreadsheet);