playlists + lyrics: setlists with pages of their own, and the words timed to the voice

src/components/ImportToast.svelte

@@ -55,6 +55,8 @@
                     <span>Imported <b>{nfmt(importStatus.done)} records</b>{importStatus.label
                         ? ` · ${importStatus.label}` : ""}</span>
                 {/if}
+            {:else if importStatus.error}
+                <span>{importStatus.error} <b>Click to fix</b></span>
             {:else}
                 <span>The import hit a problem — <b>click to see</b></span>
             {/if}