Increase web_app size limit in test

Author: szakarias

app/test/frontend/static_files_test.dart

@@ -212,7 +212,7 @@ void main() {
     test('script.dart.js and parts size check', () {
       final file = cache.getFile('/static/js/script.dart.js');
       expect(file, isNotNull);
-      expect((file!.bytes.length / 1024).round(), closeTo(336, 20));
+      expect((file!.bytes.length / 1024).round(), closeTo(345, 20));
 
       final parts = cache.paths
           .where((path) =>

pkg/web_app/lib/src/widget/downloads_chart/widget.dart

@@ -364,7 +364,7 @@ void drawChart(
     for (int i = 0; i < downloads.length; i++) {
       final index = ranges.length - 1 - i;
       if (downloads[index] > 0) {
-        // We only show the exact download count in the tooltip if it's non-zero.
+        // We only show the exact download count in the tooltip if it is non-zero.
         final square = HTMLDivElement()
           ..setAttribute(
               'class', 'downloads-chart-tooltip-square ${squareColorClass(i)}');