Change sanitize behavior for files with two dots in filename

[tolanych]

What does it do?

For files uploaded via media-manager name with two or more dots will sanitize as when creating file. UPD: Change behavior. Now sanitize path before filename and allow filename had two dots. Update related browser/file processors.

Why is it needed?

To avoid the mistake like described in issue (cannot be removed). And for consistency with behavior creating file.

Related issue(s)/PR(s)

This fixes issue #14320

[Ruslan-Aleev]

Files are renamed when they are loaded, but files with two dots in the name cannot be deleted if they are not loaded via the file manager (for example, via ftp).

[Ibochkarev]

@Jako Please check the changes.

[JoshuaLuckers]

@cla-bot check

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[SnowCreative]

Shouldn't the sanitizer also remove characters like ampersand and pound sign? Those cause problems as well, and shouldn't be allowed in file names. I have clients who upload files like this all the time and then ask me why linking to these files on their websites doesn't work. See also #13412