eslint 8.57 WIP:

* tweaking some more rules.
* fixing linting.

conversejs/lib/utils.ts

@@ -5,7 +5,7 @@
 function inIframe (): boolean {
   try {
     return window.self !== window.top
-  } catch (e) {
+  } catch (_err) {
     return true
   }
 }