feat: fixes linter issues (#575)

# Motivation

The linter found some issues with the `InputElementTest` component in
Svelte 5. To prevent unexpected behavior, we want to address these
issues.

# Changes

- resolves linter issues

Author: BonomoAlessandro

src/tests/lib/components/InputElementTest.svelte

@@ -3,6 +3,7 @@
 
   export let name: string;
   export let placeholder = "test.placeholder";
+  export let ariaLabel: string | undefined = undefined;
 
   let inputField: HTMLInputElement | undefined;
 
@@ -11,6 +12,6 @@
   };
 </script>
 
-<button on:click={changeFocus} id="test" />
+<button on:click={changeFocus} id="test" aria-label={ariaLabel}></button>
 
 <Input bind:inputElement={inputField} {name} {placeholder} />