Not exactly, because the JavaScript code can change and be delivered at ANY time. No code signature verification is involved.
An offline password manager is updated a few times a year, and will go through OS repository distribution, with verification of the signature for changes. Or you can download the software from the source website and check the signature.
An offline password manager is updated a few times a year, and will go through OS repository distribution, with verification of the signature for changes. Or you can download the software from the source website and check the signature.