Enable the ESLint grouped-accessor-pairs rule

This rule complements the existing `accessor-pairs` nicely, and ensures that a getter/setter pair is always consistently ordered.

Please find additional details about this rule at https://eslint.org/docs/rules/grouped-accessor-pairs

.eslintrc

@@ -77,6 +77,7 @@
     "curly": ["error", "all"],
     "dot-notation": "error",
     "eqeqeq": ["error", "always"],
+    "grouped-accessor-pairs": ["error", "getBeforeSet"],
     "no-caller": "error",
     "no-else-return": "error",
     "no-empty-pattern": "error",

examples/mobile-viewer/viewer.js

@@ -312,14 +312,14 @@ var PDFViewerApplication = {
     return this.pdfDocument.numPages;
   },
 
-  set page(val) {
-    this.pdfViewer.currentPageNumber = val;
-  },
-
   get page() {
     return this.pdfViewer.currentPageNumber;
   },
 
+  set page(val) {
+    this.pdfViewer.currentPageNumber = val;
+  },
+
   zoomIn: function pdfViewZoomIn(ticks) {
     var newScale = this.pdfViewer.currentScale;
     do {

web/app.js

@@ -531,14 +531,14 @@ const PDFViewerApplication = {
     return this.pdfDocument ? this.pdfDocument.numPages : 0;
   },
 
-  set page(val) {
-    this.pdfViewer.currentPageNumber = val;
-  },
-
   get page() {
     return this.pdfViewer.currentPageNumber;
   },
 
+  set page(val) {
+    this.pdfViewer.currentPageNumber = val;
+  },
+
   get printing() {
     return !!this.printService;
   },