improve registration and add oauth

app/models/submitter.rb

@@ -32,7 +32,7 @@ class Submitter < ApplicationRecord
   belongs_to :submission
 
   attribute :values, :string, default: -> { {} }
-  attribute :slug, :string, default: -> { SecureRandom.base58(10) }
+  attribute :slug, :string, default: -> { SecureRandom.base58(14) }
 
   serialize :values, JSON
 

app/models/template.rb

@@ -36,7 +36,7 @@ class Template < ApplicationRecord
   attribute :fields, :string, default: -> { [] }
   attribute :schema, :string, default: -> { [] }
   attribute :submitters, :string, default: -> { [{ name: DEFAULT_SUBMITTER_NAME, uuid: SecureRandom.uuid }] }
-  attribute :slug, :string, default: -> { SecureRandom.base58(10) }
+  attribute :slug, :string, default: -> { SecureRandom.base58(14) }
 
   serialize :fields, JSON
   serialize :schema, JSON

app/models/user.rb

@@ -46,7 +46,7 @@ class User < ApplicationRecord
   belongs_to :account
 
   devise :database_authenticatable, :recoverable, :rememberable, :validatable, :trackable
-  devise :registerable if Docuseal.multitenant?
+  devise :registerable, :omniauthable, omniauth_providers: [:google_oauth2] if Docuseal.multitenant?
 
   attribute :role, :string, default: 'admin'