[cleanup] Misc (#11347)

Closes #11361
Authored by: avagordon01, bashonly, grqz, Grub4K, seproDev

Co-authored-by: Ava Gordon <avagordon01@gmail.com>
Co-authored-by: bashonly <bashonly@protonmail.com>
Co-authored-by: N/Ame <173015200+grqz@users.noreply.github.com>
Co-authored-by: Simon Sawicki <contact@grub4k.xyz>

yt_dlp/utils/_utils.py

@@ -5142,6 +5142,7 @@ class _UnsafeExtensionError(Exception):
         'rm',
         'swf',
         'ts',
+        'vid',
         'vob',
         'vp9',
 
@@ -5174,6 +5175,7 @@ class _UnsafeExtensionError(Exception):
         'heic',
         'ico',
         'image',
+        'jfif',
         'jng',
         'jpe',
         'jpeg',