feat(library): add platform badges, remove hide duplicates

Gitea #34 slice 2 of 3. Core lists each set once now.
The hide duplicates toggle and its param are not needed.
PlatformIcons shows a badge per platform (platforms[]).

src/components/PlatformIcons.jsx

@@ -0,0 +1,30 @@
+import {useTranslation} from 'react-i18next';
+
+import {platformLabel} from '../utils/platforms.js';
+
+// lucide has no brand icons: a short text badge per platform.
+const shortName = ({source, platform}) => {
+    if (source === 'STEAM') return 'ST';
+    return platform ?? (source === 'PSN' ? 'PS' : 'M');
+};
+
+/**
+ * @param platforms the {source, platform} of every edition of a library entry, see Core's `platforms`
+ */
+export default function PlatformIcons({platforms}) {
+    const {t} = useTranslation();
+    if (!platforms?.length) return null;
+    return (
+        <ul className="flex flex-wrap gap-1">
+            {platforms.map((p) => {
+                const label = platformLabel(p) ?? t(`LIBRARY.SOURCE.${p.source}`);
+                return (
+                    <li key={`${p.source}:${p.platform ?? ''}`} title={label} aria-label={label}
+                        className="rounded border px-1 text-[10px] leading-4 font-semibold text-muted-foreground">
+                        {shortName(p)}
+                    </li>
+                );
+            })}
+        </ul>
+    );
+}