Fixes for saving of result table metadata [SCI-8774]

app/assets/javascripts/my_modules/results.js

@@ -28,7 +28,7 @@
           fillHandle: false,
           formulas: true,
           data: JSON.parse(contents.attr('value')).data,
-          cell: JSON.parse(metadata.val() || '{}').cells || [],
+          cell: (metadata.val() || {}).cells || [],
           readOnly: true
         });
         let hot = $container.handsontable('getInstance');

app/controllers/result_tables_controller.rb

@@ -31,6 +31,7 @@ class ResultTablesController < ApplicationController
 
   def create
     @table = Table.new(result_params[:table_attributes])
+    @table.metadata = JSON.parse(result_params[:table_attributes][:metadata])
     @table.created_by = current_user
     @table.team = current_team
     @table.last_modified_by = current_user