Add account to antenna webui

app/models/antenna_account.rb

@@ -14,4 +14,6 @@ class AntennaAccount < ApplicationRecord
   belongs_to :antenna
   belongs_to :account
 
+  validates :account_id, uniqueness: { scope: :antenna_id }
+
 end

app/models/concerns/account_associations.rb

@@ -48,6 +48,10 @@ module AccountAssociations
     has_many :account_warnings, dependent: :destroy, inverse_of: :account
     has_many :strikes, class_name: 'AccountWarning', foreign_key: :target_account_id, dependent: :destroy, inverse_of: :target_account
 
+    # Antennas (that the account is on, not owned by the account)
+    has_many :antenna_accounts, inverse_of: :account, dependent: :destroy
+    has_many :joined_antennas, class_name: 'Antenna', through: :antenna_accounts, source: :antenna
+
     # Lists (that the account is on, not owned by the account)
     has_many :list_accounts, inverse_of: :account, dependent: :destroy
     has_many :lists, through: :list_accounts