android: the hub's filters on the network results, pasted lyrics

The raw results take the Soulseek hub's filters — a free slot only, FLAC
or MP3 320+ — as chips above the folders. The lyrics sheet has the
desktop's paste door: plain text, or LRC with timestamps, kept for the
track.

src/mobile/screens/Search.svelte

@@ -263,6 +263,15 @@
         netSearch(query).catch(() => {});
         inputEl?.blur();
     }
+    /* the hub's filters over the raw results: a free slot only, a format */
+    let netFree = $state(false);
+    let netFmt = $state("any");
+    const shownGroups = $derived(net.groups.filter((g) => {
+        if (netFree && !g.slot) return false;
+        if (netFmt === "flac") return g.topExt === "flac";
+        if (netFmt === "mp3320") return g.topExt !== "flac" && (g.maxBitrate ?? 0) >= 320;
+        return true;
+    }));
     function playPeer(g, i) {
         const es = groupEntries(g, i);
         if (es.length) playEntries(es, 0, g.folderName).catch((e) => { player.error = String(e); });
@@ -421,10 +430,19 @@
                 {#if !net.searching}<button class="all net-ask" onclick={askNetwork}>Again<Icon name="refresh" size={14} /></button>{/if}
             </div>
             {#if net.error}<div class="sec-note">{net.error}</div>{/if}
+            {#if net.groups.length}
+                <div class="chips netfilters" style="padding-bottom: 10px">
+                    <button class="chip" class:on={netFree} class:quiet={!netFree} onclick={() => (netFree = !netFree)}>Free slot</button>
+                    {#each [["any", "Any format"], ["flac", "FLAC"], ["mp3320", "MP3 320+"]] as [v, l] (v)}
+                        <button class="chip" class:on={netFmt === v} class:quiet={netFmt !== v} onclick={() => (netFmt = v)}>{l}</button>
+                    {/each}
+                </div>
+                {#if shownGroups.length !== net.groups.length}<div class="sec-note">{shownGroups.length} of {net.groups.length} folders</div>{/if}
+            {/if}
             {#if net.searching && !net.groups.length}
                 <div class="sec-note">Asking the network as {slsk.username}…</div>
             {/if}
-            {#each net.groups.slice(0, 40) as g (g.key)}
+            {#each shownGroups.slice(0, 40) as g (g.key)}
                 <div class="peer">
                     <div class="peer-head" oncontextmenu={(e) => { e.preventDefault(); openHalf("peer", { username: g.username, group: g }); }} role="presentation">
                         <span class="peer-who">