Use optional catch binding.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

app/renderer/js/clipboard-decrypter.ts

@@ -59,7 +59,7 @@ export class ClipboardDecrypterImpl implements ClipboardDecrypter {
 					plaintext =
 						decipher.update(ciphertext, undefined, 'utf8') +
 						decipher.final('utf8');
-				} catch (_) {
+				} catch {
 					// If the parsing or decryption failed in any way,
 					// the correct token hasn’t been copied yet; try
 					// again next time.

app/renderer/js/main.ts

@@ -627,7 +627,7 @@ class ServerManagerView {
 
 		try {
 			this.tabs[index].webview.canGoBackButton();
-		} catch (_) {
+		} catch {
 		}
 
 		this.activeTabIndex = index;
@@ -893,7 +893,7 @@ class ServerManagerView {
 			webviews.forEach(webview => {
 				try {
 					webview.setAudioMuted(state);
-				} catch (_) {
+				} catch {
 					// Webview is not ready yet
 					webview.addEventListener('dom-ready', () => {
 						webview.setAudioMuted(state);

app/renderer/js/utils/proxy-util.ts

@@ -10,7 +10,7 @@ export function getProxy(_uri: string): ProxyRule | void {
 	let uri;
 	try {
 		uri = new URL(_uri);
-	} catch (_) {
+	} catch {
 		return;
 	}