feat: add the files into a settings parameter

src/cmd_line.rs

@@ -22,6 +22,8 @@ pub struct CmdLineSettings {
     pub neovim_bin: Option<String>,
     pub wayland_app_id: String,
     pub x11_wm_class: String,
+    // Command-line arguments with multiple files
+    pub files: Vec<String>,
 }
 
 impl Default for CmdLineSettings {
@@ -45,6 +47,8 @@ impl Default for CmdLineSettings {
             neovim_bin: None,
             wayland_app_id: String::new(),
             x11_wm_class: String::new(),
+            // Command-line arguments with multiple files
+            files: vec![],
         }
     }
 }
@@ -197,6 +201,11 @@ pub fn handle_command_line_arguments(args: Vec<String>) -> Result<(), String> {
             .map(|v| v.to_owned())
             .or_else(|| std::env::var("NEOVIDE_X11_WM_CLASS").ok())
             .unwrap_or_else(|| "neovide".to_owned()),
+        // Command-line arguments with multiple files
+        files: matches
+            .values_of("files_to_open")
+            .map(|opt| opt.map(|v| v.to_owned()).collect())
+            .unwrap_or_default(),
     });
     Ok(())
 }