openExternalSync is deprecated (and removed in Electron 7)

[AidanGG]

caprine/source/index.ts

Lines 456 to 460 in d27f5af

	}
	shell.openExternalSync(url);
	}
	});

and

caprine/source/index.ts

Lines 500 to 503 in d27f5af

	event.preventDefault();
	shell.openExternalSync(url);
	});
	})();

This function is not available on Electron 7 (which will presumably be supported in the future, and is the only way to use Caprine on Arch Linux right now). I'm not asking to switch to Electron 7, but could we perhaps switch to using the asynchronous shell.openExternal instead, which returns Promise<void> since the Boolean result of openExternalSync is unused? This should restore link opening on Arch Linux.

[sindresorhus]

Should be fixed by https://github.com/sindresorhus/caprine/releases/tag/v2.41.0