fix: promise chaining

index.html

@@ -278,7 +278,7 @@ $.set('#send', 'click', async () => {
     $('#send').classList.remove('pulse');
     $('#send').disabled = true;
     busy = true;
-    busy = await handlePrimaryButtonClick().then(() => false, e => console.error(e));
+    busy = await handlePrimaryButtonClick().catch(e => console.error(e)).then(() => false);
 });
 
 $.set('#cancel', 'click', async () => {
@@ -433,7 +433,7 @@ while (await new Promise(o => setTimeout(o, 1000, true))) {
                 await Rpc2.notify('close');
             } catch (e) {
                 if (Error.isError(e) && e.name === 'NoModificationAllowedError') continue;
-                await new Promise(fn => fn(writable.abort())).catch(() => null);
+                await new Promise(fn => fn(writable.abort())).catch(() => void 0);
                 alert('(ERROR) ' + new String(e ?? 'File operation failed'));
             }
             save = false;