Fix 2fa recovery endpoint (#6240)

The newer web-vaults handle the 2fa recovery code differently.
This commit fixes this by adding this new flow.

Fixes #6200
Fixes #6203

Signed-off-by: BlackDex <black.dex@gmail.com>

src/db/models/two_factor.rs

@@ -31,6 +31,7 @@ pub enum TwoFactorType {
     Remember = 5,
     OrganizationDuo = 6,
     Webauthn = 7,
+    RecoveryCode = 8,
 
     // These are implementation details
     U2fRegisterChallenge = 1000,