Fallback for `:webp` modifier to prevent system crashes

[intoeetive]

Discussed in #4572

^{Originally posted by shbchk November 5, 2024}

Suggest an idea for ExpressionEngine

In the development environment, when using the :webp modifier on images not present on the local server, the system throws the following exception:

Exception Caught
Cannot create a temp file from path: Mzk2L2VkaXRpb25zLzI0NjUvZmlsbXMvMTAyNTI3Ny9hY2Nlc3Nvcmllcy8xNTQwOTk2LnBuZw__.png
ee/ExpressionEngine/Library/Filesystem/Filesystem.php:1034

Please, add a fallback for cases where image files are missing on the server. Syncing all images locally is unrealistic and impractical for larger sites (currently >70GB for me).

This would prevent dev crashes.

[shbchk]

Thank you, Yuri!