This commit dynamically translate some content in the spreadsheet.
Static translated terms are extracted from the spreadsheet data.
One might think we could translate the spreadsheet upfront, server side,
by translating the data before sending it to the client but it could lead to
unexpected behaviors though:
Let's say a chart has a translated title, if you copy-paste it from one sheet
to another, you still want the title to be translated/translatable.
In other words: manipulating things in the spreadsheet should be done on
the raw, untranslated, data.
X-original-commit: 53dc147504bfc3ddabef61a2bae8610f526bf6ac
Part-of: odoo/odoo#101120
Pierre Rousseau
24a38f2054