Support LastPass form fill imports

[kspearrin]

Apparently LastPass has an alternate method to export form fills. See https://support.dashlane.com/hc/en-us/articles/202699141-How-to-Import-from-LastPass#title1

[setyb]

Completing this issue is necessary to switch from LastPass to Bitwarden. Importing all the data from LastPass is really a requirement before making the switch and turning off LastPass for good.

[setyb]

Is there a 4-step way to get this done?

i.e.:

1. Export from LastPass
2. Import everything into intermediate password app "x" (perhaps Keepass?)
3. Export from password app "x"
4. Import into Bitwarden

[kspearrin]

This is now available:

https://help.bitwarden.com/article/import-from-lastpass/#importing-form-fills-optional