[FIX] sheet: Avoid divergent sheet names in collaborative

Similar issue to the one raised in #5010.
If 2 userrs with different languages (i.e. different translation
schemes), importing a sheet data without a name could result in
different outcomes for both users.

Currently, this is not an issue because the sheet data are 'fixed'
upstream by the migration mecanism but this might change/disappear in
the future.

closes #5090

Task: 0
Signed-off-by: Lucas Lefèvre (lul) <[email protected]>

src/plugins/core/sheet.ts

@@ -249,7 +249,7 @@ export class SheetPlugin extends CorePlugin<SheetState> implements SheetState {
     }
 
     for (let sheetData of data.sheets) {
-      const name = sheetData.name || _t("Sheet") + (Object.keys(this.sheets).length + 1);
+      const name = sheetData.name || "Sheet" + (Object.keys(this.sheets).length + 1);
       const { colNumber, rowNumber } = this.getImportedSheetSize(sheetData);
       const sheet: Sheet = {
         id: sheetData.id,