To update an application you can go to the developer portal and upload a new dist file. You can directly update the text and submit the application to update the contents.
Could you please explain more on this point, cause my puny mind can’t grasp it with the given context?
In the developer portal, you can find the delete button for the published application.
Please go to the Manage App section and locate the app for which you want to edit the OAuth credentials. Click the Settings button, and a popover will appear, displaying a list of options. From the options, select Reauthorize. This action will open the OAuth page, where the existing values will be automatically populated in the fields. You can review and update these values as needed. Once you have made the necessary changes, click the Reauthorize button to save the updated credentials and complete the authorization process.