fix: regex for filename test

[MrMysterius]

Fixed Regex to exclude the extension after test for further processing, which would have cause every theoretically valid file to fail test

[MrMysterius]

@Eforen

[MrMysterius]

Since this was still open, I looked into if it was still an Issue.

Yes, it is still an issue, but only if you have strict filenames it will fail. Since it always creates files in the Markdown format even on strict setting, it should account that, so this fix is need and just removes the file ending in the id parsing check completely.

So @Eforen , would you be so kind to merge this.

[HaxSam]

bump