[build] upgrade eslint to 9.37.0 (#88)

Co-authored-by: tobi <tobi.smethurst@protonmail.com>
Reviewed-on: https://codeberg.org/superseriousbusiness/masto-fe-standalone/pulls/88
Co-authored-by: Zoë Bijl <moiety@noreply.codeberg.org>
Co-committed-by: Zoë Bijl <moiety@noreply.codeberg.org>

app/javascript/flavours/glitch/utils/js_helpers.js

@@ -1,5 +1,5 @@
 //  This function returns the new value unless it is `null` or
 //  `undefined`, in which case it returns the old one.
 export function overwrite (oldVal, newVal) {
-  return newVal === null || typeof newVal === 'undefined' ? oldVal : newVal;
+  return newVal === null || typeof newVal === "undefined" ? oldVal : newVal;
 }