feat: Add CSAT response APIs (#2503)

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

app/controllers/api/v1/accounts/csat_survey_responses_controller.rb

@@ -0,0 +1,22 @@
+class Api::V1::Accounts::CsatSurveyResponsesController < Api::V1::Accounts::BaseController
+  include DateRangeHelper
+
+  RESULTS_PER_PAGE = 25
+
+  before_action :check_authorization
+  before_action :csat_survey_responses, only: [:index]
+
+  def index; end
+
+  private
+
+  def csat_survey_responses
+    @csat_survey_responses = Current.account.csat_survey_responses
+    @csat_survey_responses = @csat_survey_responses.where(created_at: range) if range.present?
+    @csat_survey_responses.page(@current_page).per(RESULTS_PER_PAGE)
+  end
+
+  def set_current_page
+    @current_page = params[:page] || 1
+  end
+end