Setting to colorize HTTP methods

https://feedback.yaak.app/p/support-colors-for-http-method-in-sidebar

src-tauri/yaak-models/src/queries/settings.rs

@@ -29,6 +29,7 @@ impl<'a> DbContext<'a> {
             theme_dark: "yaak-dark".to_string(),
             theme_light: "yaak-light".to_string(),
             update_channel: "stable".to_string(),
+            colored_methods: false,
         };
         self.upsert(&settings, &UpdateSource::Background).expect("Failed to upsert settings")
     }