fix(backstop): increase threshold for regression tests

Increase the threshold for three regression tests.

Author: AdamJ

backstop/config/scenarios/list.js

@@ -5,5 +5,5 @@ module.exports = [{
   label: 'list',
   url: 'dist/tests/list-pf.html',
   disabled: false,
-  misMatchThreshold: 7.05
+  misMatchThreshold: 7.30
 }]

backstop/config/scenarios/pagination-table-view.js

@@ -4,5 +4,5 @@ module.exports = [{
   label: 'pagination-table-view',
   url: 'dist/tests/pagination-table-view.html',
   disabled: false,
-  misMatchThreshold: 7.80
+  misMatchThreshold: 8.30
 }]

backstop/config/scenarios/table-view-navbar.js

@@ -4,5 +4,5 @@ module.exports = [{
   label: 'table-view-navbar',
   url: 'dist/tests/table-view-navbar.html',
   disabled: false,
-  misMatchThreshold: 7.80
+  misMatchThreshold: 8.30
 }]