debug: Launch custom commands from start modal (#32484)

Release Notes:

- Add custom command launching from the `debug: start` modal

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>

crates/project/src/debugger/locators/cargo.rs

@@ -75,6 +75,7 @@ impl DapLocator for CargoLocator {
             }
             _ => {}
         }
+
         Some(DebugScenario {
             adapter: adapter.0,
             label: resolved_label.to_string().into(),

crates/project/src/debugger/locators/go.rs

@@ -98,7 +98,6 @@ impl DapLocator for GoLocator {
         if build_config.command != "go" {
             return None;
         }
-
         let go_action = build_config.args.first()?;
 
         match go_action.as_str() {

crates/project/src/debugger/locators/node.rs

@@ -31,8 +31,7 @@ impl DapLocator for NodeLocator {
         if cfg!(not(debug_assertions)) {
             return None;
         }
-
-        if adapter.as_ref() != "JavaScript" {
+        if adapter.0.as_ref() != "JavaScript" {
             return None;
         }
         if build_config.command != TYPESCRIPT_RUNNER_VARIABLE.template_value() {

crates/project/src/debugger/locators/python.rs

@@ -22,7 +22,7 @@ impl DapLocator for PythonLocator {
         resolved_label: &str,
         adapter: DebugAdapterName,
     ) -> Option<DebugScenario> {
-        if adapter.as_ref() != "Debugpy" {
+        if adapter.0.as_ref() != "Debugpy" {
             return None;
         }
         let valid_program = build_config.command.starts_with("$ZED_")