Spreadsheet template functionality has been consolidated into the Enterprise documents spreadsheet module, aligning the code with where the feature is offered. The change also fixes an issue that could prevent creating a template from spreadsheets containing pivot tables with column grouping.

Spreadsheet template feature is a feature enterprise but some part of the code is located in community following a split in the modules.
The code is moved where it belongs.

The spreadsheet template area has been cleaned up by removing an older list view and consolidating related test journeys. This reduces maintenance complexity and helps keep the template experience more consistent across Documents, Accounting, and CRM spreadsheet features.