feat(start): Add --detach flag

This will create a dedicated worktree for the instance.

App listed to be enabled will also benefit from their own worktrees.

The worktree is cleanup when the instance is destroyed.

src/help.rs

@@ -89,6 +89,8 @@ fn subcommand_help(command: &dyn SubCommand) {
         print!(" {}", "[database type]".green());
         print!(" {}", "[services]".green());
         print!(" {}", "[vX.Y.Z]".green());
+        print!(" {}", "[--name <name>]".green());
+        print!(" {}", "[--detach]".green());
     }
 
     let args = if let Some(args) = command.get_str("Args") {
@@ -156,6 +158,17 @@ fn subcommand_help(command: &dyn SubCommand) {
                 service.get_documentation().unwrap_or_default(),
             );
         }
+        println!();
+
+        println!("{}", "Options:".yellow().bold());
+        println!(
+            "  {}  name the instance instead of generating a random name",
+            "--name <name>".blue()
+        );
+        println!(
+            "  {}       give the instance its own worktree of the sources",
+            "--detach".blue()
+        );
     }
 
     if let Some(sub_commands) = command.sub_commands() {