util: Fix shell kind in windows based on program path (#39696)

Closes #39614

The `ShellKind` struct is built on Windows' side, meaning that when
connecting to remotes, we fall back to PowerShell construction, even if
the shell program we are spawning is a unix program.

This broke tasks creation since we are using the shell kind to construct
args:


https://github.com/zed-industries/zed/blob/d04ac864b8cb78ee888ce03323e34c17a6dd16b9/crates/project/src/terminals.rs#L149

In normal terminals this only affected activation scripts (only place
where shell kind is used)

I don't have a Windows machine to test it, so I would appreciate any
help with testing!

Release Notes:

- Fixed an issue where tasks could not be executed in Windows WSL

---------

Signed-off-by: Marco Mihai Condrache <52580954+marcocondrache@users.noreply.github.com>

crates/acp_thread/src/acp_thread.rs

@@ -2112,6 +2112,7 @@ impl AcpThread {
 
         let project = self.project.clone();
         let language_registry = project.read(cx).languages().clone();
+        let is_windows = project.read(cx).path_style(cx).is_windows();
 
         let terminal_id = acp::TerminalId(Uuid::new_v4().to_string().into());
         let terminal_task = cx.spawn({
@@ -2125,9 +2126,10 @@ impl AcpThread {
                             .and_then(|r| r.read(cx).default_system_shell())
                     })?
                     .unwrap_or_else(|| get_default_system_shell_preferring_bash());
-                let (task_command, task_args) = ShellBuilder::new(&Shell::Program(shell))
-                    .redirect_stdin_to_dev_null()
-                    .build(Some(command.clone()), &args);
+                let (task_command, task_args) =
+                    ShellBuilder::new(&Shell::Program(shell), is_windows)
+                        .redirect_stdin_to_dev_null()
+                        .build(Some(command.clone()), &args);
                 let terminal = project
                     .update(cx, |project, cx| {
                         project.create_terminal_task(