support modifying tmux display-menu border style

examples/menu.yaml

@@ -40,6 +40,7 @@
 #         h: ...
 
 title: " menu "
+border: "simple"
 items:
 
   - NoDim:

src/tmux/mod.rs

@@ -21,6 +21,10 @@ impl Tmux {
         spawn_binary(self.binary.clone(), arguments, non_block)
     }
 
+    fn construct_border_arguments(border: &str) -> Vec<String> {
+        vec!["-b".to_string(), border.to_string()]
+    }
+
     fn construct_position_arguments(position: &Position) -> Vec<String> {
         if let (Some(w), Some(h)) = (position.w.clone(), position.h.clone()) {
             vec![

src/tmux/subcommand/display_menu.rs

@@ -47,6 +47,7 @@ impl Tmux {
         }
         arguments.append(&mut Self::construct_title_arguments(&menu.title));
         arguments.append(&mut Self::construct_position_arguments(&menu.position));
+        arguments.append(&mut Self::construct_border_arguments(&menu.border));
         arguments.push("".to_string()); // We have to add seperator here before menu items
         arguments.append(&mut Self::construct_menu_arguments(
             &menu.items,

src/tmux/subcommand/display_popup.rs

@@ -7,10 +7,6 @@ use anyhow::Result;
 static DISPLAY_POPUP: &str = "display-popup";
 
 impl Tmux {
-    fn construct_border_arguments(border: &str) -> Vec<String> {
-        vec!["-b".to_string(), border.to_string()]
-    }
-
     pub fn display_popup(
         &self,
         command: String,