feat(config): add command to edit config files with preferred editor

src/cli.rs

@@ -78,6 +78,13 @@ pub enum ConfigAction {
 
     /// Show possible config file locations
     Paths,
+
+    /// Edit configuration file with $EDITOR or vi
+    Edit {
+        /// Path to config file to edit
+        #[arg(short, long)]
+        path: Option<PathBuf>,
+    },
 }
 
 impl Cli {