Add a button to open the web vault from the browser extension.
The main feature I miss about Lastpass is the button that allows to open the web vault using a button in the extension pop up.
Sometimes the web vault is better than the extension, for example when I have to add/edit varius passwords, and at the moment I have to manually go to vault.bitwarden.com and re do the login.
The button in the extension menu instead would automatically log into the online vault in a new browser tab.
I would put it near the top-left button, that open the extension in a separate window (or maybe you could add a setting to choose if the existing button should open the extension in a new window, or open the full featured web vault in a new tab).