fix: Create empty files from template if available

[juliushaertl]

Before this change empty files were always just created with a copy of the empty documents, which enforced US spell checking. With this we create a file from the present empty template files.

Fixes #3029
Fixes #2983

Steps to reproduce:

• Change user language to german
• Create a new empty file
• See that the spell checking language of the new document properly adapts

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Documentation (manuals or wiki) has been updated or is not required

[juliushaertl]

cc @gokaysatir as you pointed that out in #3029

[juliushaertl]

/backport to stable27

[juliushaertl]

/backport to stable26

[cypress]

Passing run #435 ↗︎

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25

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Details:

fix: Create empty files from template if available
Project: Richdocuments	Commit: 45973ce283
Status: Passed	Duration: 02:49 💡
Started: Jul 11, 2023 10:50 AM	Ended: Jul 11, 2023 10:53 AM

_{This comment has been generated by cypress-bot as a result of this project's GitHub integration settings.}

[juliushaertl]

Arg, merged the wrong tab 🙈 @blizzz Up for a quick retroactive review?

[thebearon]

@juliushaertl I assume this fix is also relevant to version 25, is it so?