Web: upload a folder that already exists leads to error

[bpasero]

Steps:

• be in web (yarn web is fine)
• drag and drop a folder that already exists into the explorer
• confirm to overwrite

Error: Unable to read file 'memfs:/sample-folder/xyz' (Error: Unable to read file 'memfs:/sample-folder/xyz' that is actually a directory)
    at FileService.doReadFileStream (fileService.ts:529)
    at async FileService.doReadFile (fileService.ts:451)
    at async DeleteOperation.perform (bulkFileEdits.ts:254)
    at async BulkFileEdits.apply (bulkFileEdits.ts:387)
    at async BulkEdit._performFileEdits (bulkEditService.ts:97)
    at async BulkEdit.perform (bulkEditService.ts:82)
    at async BulkEditService.apply (bulkEditService.ts:199)
    at :8080/async http:/localhost:8080/static/out/vs/workbench/contrib/files/browser/explorerService.js:122

[isidorn]

When creating ResourceFileEdits we have to specify if it is a folder.