[FW][REF] plugin cell: use a new command "CLEAR_CELLS"

[fw-bot]

for performance and clarification reasons, groups the dispatch commands "CLEAR_CELL" with a single command "CLEAR_CELLS" where possible.

Task : 4095732

review checklist

• [ ] feature is organized in plugin, or UI components
• [ ] support of duplicate sheet (deep copy)
• [ ] in model/core: ranges are Range object, and can be adapted (adaptRanges)
• [ ] in model/UI: ranges are strings (to show the user)
• [ ] undo-able commands (uses this.history.update)
• [ ] multiuser-able commands (has inverse commands and transformations where needed)
• [ ] new/updated/removed commands are documented
• [ ] exportable in excel
• [ ] translations (_t("qmsdf %s", abc))
• [ ] unit tested
• [ ] clean commented code
• [ ] track breaking changes
• [ ] doc is rebuild (npm run doc)
• [ ] status is correct in Odoo

Forward-Port-Of: odoo/o-spreadsheet#4831 Forward-Port-Of: odoo/o-spreadsheet#4782

[robodoo]

[fw-bot]

@laa-odoo @LucasLefevre cherrypicking of pull request odoo/o-spreadsheet#4782 failed.

stdout:

Auto-merging src/clipboard_handlers/cell_clipboard.ts
CONFLICT (content): Merge conflict in src/clipboard_handlers/cell_clipboard.ts
Auto-merging src/plugins/core/cell.ts
Auto-merging src/plugins/core/sheet.ts
Auto-merging src/plugins/ui_feature/data_cleanup.ts
Auto-merging src/plugins/ui_stateful/clipboard.ts
CONFLICT (content): Merge conflict in src/plugins/ui_stateful/clipboard.ts
Auto-merging src/types/commands.ts
Auto-merging tests/test_helpers/commands_helpers.ts
Auto-merging tests/test_helpers/constants.ts

Either perform the forward-port manually (and push to this branch, proceeding as usual) or close this PR (maybe?).

In the former case, you may want to edit this PR message as well.

:warning: after resolving this conflict, you will need to merge it via @robodoo.

More info at https://github.com/odoo/odoo/wiki/Mergebot#forward-port

[laa-odoo]

@robodoo r+