feat: basic design of share page, various small fixes

web/src/ts/util/reauth.ts

@@ -0,0 +1,17 @@
+export const reauth = () => {
+    localStorage.setItem( 'close-tab', 'true' );
+
+    const listener = () => {
+        if ( localStorage.getItem( 'reauth-ok' ) === 'true' ) {
+            try {
+                window.removeEventListener( 'storage', listener );
+            } catch { /* empty */ }
+
+            localStorage.removeItem( 'reauth-ok' );
+
+            document.dispatchEvent( new CustomEvent( 'musicplayer:reauth' ) );
+        }
+    };
+
+    window.addEventListener( 'storage', listener );
+};