This fix changes how the website footer company name is overridden so edits are handled in a separate template. It helps prevent duplicated company names in the footer when website content is edited, keeping the site footer cleaner and more reliable.

The footer company name override from the website is done in a separate
template from website.layout in order to avoid duplicating it when
edited.

Related to https://github.com/odoo/odoo/pull/69943
task-2468472

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This fixes a small duplicate code issue in the website editor that was introduced by an earlier change. It helps keep the editor code cleaner and reduces the chance of inconsistent behavior without changing the user experience.

wrongly introduced in #69471 

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