feat: Disable attachments and emoji picker in the web widget (#1102)

Signed-off-by: Pranav Raj Sreepuram <pranavrajs@gmail.com>

app/models/channel/web_widget.rb

@@ -3,6 +3,7 @@
 # Table name: channel_web_widgets
 #
 #  id              :integer          not null, primary key
+#  feature_flags   :integer          default(3), not null
 #  website_token   :string
 #  website_url     :string
 #  welcome_tagline :string
@@ -18,6 +19,8 @@
 #
 
 class Channel::WebWidget < ApplicationRecord
+  include FlagShihTzu
+
   self.table_name = 'channel_web_widgets'
 
   validates :website_url, presence: true
@@ -26,6 +29,9 @@ class Channel::WebWidget < ApplicationRecord
   belongs_to :account
   has_one :inbox, as: :channel, dependent: :destroy
   has_secure_token :website_token
+  has_flags 1 => :attachments,
+            2 => :emoji_picker,
+            :column => 'feature_flags'
 
   def has_24_hour_messaging_window?
     false