UUF: Missing info

### Type of issue

Missing information

### Description

Why is it completely unclear whether "FullPath" includes the filename and extension or just the path. It's like the entire documentation was written so as to completely obfuscate this massive important detail so I'd have to run code to find out.

### Page URL

https://learn.microsoft.com/en-us/dotnet/api/system.io.filesystemeventargs?view=net-8.0

### Content source URL

https://github.com/dotnet/dotnet-api-docs/blob/main/xml/System.IO/FileSystemEventArgs.xml

### Document Version Independent Id

45ec420e-fc63-03ff-6cc3-125a76cf9722

### Article author

@dotnet-bot @gewarren