Invoice Preview hangs with German language

[Bassem-Ramzy]

On Odoo CE 17, when clicking "Preview" for an invoice while user language preference is German, then no preview is displayed and it hangs.

[Bassem-Ramzy]

Main reason is the update in commit 4288cee, causing "unescaped double quote" in de.po which causes an infinite loop in the translation js.
For instance, the value <p>Dear <t t-out="object.name"/>,</p> should be fixed to be <p>Dear <t t-out=\"object.name\"/>,</p> .
Solution is to run msgfmt on de.po file and fix all those occurences.
N.B. this mainly happens on Linux server, but works normally on Windows server.