Build: Update ESLint to v9, migrate to flat config, lint dist files

Dist files linting is limited to checking if they're proper ES5.

Closes gh-2336

1 files changed, 1 insertions, 3 deletions

diff --git a/ui/effect.js b/ui/effect.js
index bbbb733c3..cb9ab8043 100644
--- a/ui/effect.js
+++ b/ui/effect.js
@@ -9,9 +9,7 @@
 
 //>>label: Effects Core
 //>>group: Effects
-/* eslint-disable max-len */
 //>>description: Extends the internal jQuery effects. Includes morphing and easing. Required by all other effects.
-/* eslint-enable max-len */
 //>>docs: https://api.jqueryui.com/category/effects-core/
 //>>demos: https://jqueryui.com/effect/
 
@@ -320,7 +318,7 @@ if ( $.uiBackCompat === true ) {
 			try {
 				// eslint-disable-next-line no-unused-expressions
 				active.id;
-			} catch ( e ) {
+			} catch ( _e ) {
 				active = document.body;
 			}