some improvements

src/cli.rs

@@ -1,24 +1,12 @@
-use clap::Parser;
-
-#[derive(Parser)]
+#[derive(clap::Parser)]
 #[clap(author, version, about = "Experemental task manager")]
 pub struct Args {
     #[clap(subcommand)]
     pub command: SubCommand,
 }
 
-#[derive(Parser)]
+#[derive(clap::Subcommand)]
 pub enum SubCommand {
-    List,
-    Start {
-        #[clap(short, long)]
-        open: bool,
-
-        idx: Option<usize>,
-    },
-    Pause,
-    Finish,
-    Status,
     Add {
         #[clap(short, long)]
         link: Option<String>,
@@ -44,9 +32,19 @@ pub enum SubCommand {
         #[clap(subcommand)]
         priority: Priority,
     },
+    List,
+    Start {
+        #[clap(short, long)]
+        open: bool,
+
+        idx: Option<usize>,
+    },
+    Pause,
+    Finish,
+    Status,
 }
 
-#[derive(Parser)]
+#[derive(clap::Subcommand)]
 pub enum Priority {
     Before { idx: usize },
     After { idx: usize },