Fix folder name copying

Author: JustForFun88

yazi-shared/src/path/dyn.rs

@@ -125,9 +125,11 @@ impl<'p> PathLike<'p> for PathDyn<'p> {
 	}
 
 	fn stem(self) -> Option<Self::Strand<'p>> {
-		Some(match self {
-			Self::Os(p) => p.file_stem()?.into(),
-		})
+		let stem = match self {
+			Self::Os(p) if p.is_dir() => p.file_name(),
+			Self::Os(p) => p.file_stem(),
+		};
+		stem.map(Into::into)
 	}
 
 	fn try_ends_with<'a, T>(self, child: T) -> Result<bool, EndsWithError>

yazi-shared/src/path/path.rs

@@ -114,7 +114,9 @@ impl<'p> PathLike<'p> for &'p std::path::Path {
 
 	fn parent(self) -> Option<Self> { self.parent() }
 
-	fn stem(self) -> Option<Self::Strand<'p>> { self.file_stem() }
+	fn stem(self) -> Option<Self::Strand<'p>> {
+		if self.is_dir() { self.file_name() } else { self.file_stem() }
+	}
 
 	fn try_ends_with<'a, T>(self, child: T) -> Result<bool, EndsWithError>
 	where