[FW][FIX] borders: fix border on column/row deletion

[fw-bot]

• Fix issue when deleting the first/last row/colum not deleting the exterior borders

• Fix issue with wrong border movement when deleting row/col

• Fix not removing internal border when deleting row/col

Task: 4089281

Description:

description of this task, what is implemented and why it is implemented that way.

Task: 4089281

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: #5300

[robodoo]

[fw-bot]

@fdamhaut @rrahir cherrypicking of pull request #5300 failed.

stdout:

Auto-merging src/plugins/core/borders.ts
CONFLICT (modify/delete): tests/plugins/borders.test.ts deleted in 0277eb90d23ab73adfdb44dfcdc3d6ba68ff4f7c and modified in 0a0f18aef5d2fd0994b1aeacdf3f4f47ff1e5c8f.  Version 0a0f18aef5d2fd0994b1aeacdf3f4f47ff1e5c8f of tests/plugins/borders.test.ts left in tree.

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.

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

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