Fix recursive search at the root, cleanup video generation return

src/files.rs

@@ -70,7 +70,17 @@ pub async fn list_photos<TagD: TagDao, FS: FileSystemAccess>(
             .map(|tagged_files| {
                 tagged_files
                     .into_iter()
-                    .filter(|f| f.starts_with(&format!("{}/", search_path).to_string()))
+                    .filter(|f| {
+                        // When searching at the root, everything matches recursively
+                        if search_path.trim() == "" { return true; }
+
+                        f.starts_with(
+                            &format!(
+                                "{}/",
+                                search_path.strip_suffix('/').unwrap_or_else(|| search_path)
+                            ),
+                        )
+                    })
                     .collect::<Vec<String>>()
             })
             .inspect(|files| debug!("Found {:?} files", files.len()))