Fix opening schemas via path args (#47008)

Closes #ISSUE

Release Notes:

- N/A *or* Added/Fixed/Improved ...

crates/zed/src/main.rs

@@ -1541,6 +1541,7 @@ fn parse_url_arg(arg: &str, cx: &App) -> String {
         Ok(path) => format!("file://{}", path.display()),
         Err(_) => {
             if arg.starts_with("file://")
+                || arg.starts_with("zed://")
                 || arg.starts_with("zed-cli://")
                 || arg.starts_with("ssh://")
                 || parse_zed_link(arg, cx).is_some()