add user account email verificiation (#977)

* add user account email verificiation

includes server and client code to:

* enable verificationRequired via custom config
* send verification email with registration
* ask for verification email
* verify via email
* prevent login if not verified and required
* conditional client links to ask for new verification email

* allow login for verified=null

these are users created when verification not required
should still be able to login when verification is enabled

* refactor email verifcation pr

* change naming from verified to emailVerified
* change naming from askVerifyEmail to askSendVerifyEmail
* undo unrelated automatic prettier formatting on api/config
* use redirectService for home
* remove redundant success notification on email verified

* revert test.yaml smpt host

server/models/account/user.ts

@@ -24,6 +24,7 @@ import {
   isUserBlockedReasonValid,
   isUserBlockedValid,
   isUserNSFWPolicyValid,
+  isUserEmailVerifiedValid,
   isUserPasswordValid,
   isUserRoleValid,
   isUserUsernameValid,
@@ -92,6 +93,12 @@ export class UserModel extends Model<UserModel> {
   @Column(DataType.STRING(400))
   email: string
 
+  @AllowNull(true)
+  @Default(null)
+  @Is('UserEmailVerified', value => throwIfNotValid(value, isUserEmailVerifiedValid, 'email verified boolean'))
+  @Column
+  emailVerified: boolean
+
   @AllowNull(false)
   @Is('UserNSFWPolicy', value => throwIfNotValid(value, isUserNSFWPolicyValid, 'NSFW policy'))
   @Column(DataType.ENUM(values(NSFW_POLICY_TYPES)))
@@ -304,6 +311,7 @@ export class UserModel extends Model<UserModel> {
       id: this.id,
       username: this.username,
       email: this.email,
+      emailVerified: this.emailVerified,
       nsfwPolicy: this.nsfwPolicy,
       autoPlayVideo: this.autoPlayVideo,
       role: this.role,