content test [nfc]: Reorder KaTeX widget tests, enabled before disabled

With renderKatex flag enabled (and soon to be default behaviour)
being first.

Author: rajveermalviya

test/widgets/content_test.dart

@@ -560,23 +560,23 @@ void main() {
 
     testContentSmoke(ContentExample.mathBlock);
 
-    testWidgets('displays KaTeX source; experimental flag disabled', (tester) async {
+    testWidgets('displays KaTeX content; experimental flag enabled', (tester) async {
       addTearDown(testBinding.reset);
       final globalSettings = testBinding.globalStore.settings;
-      await globalSettings.setBool(BoolGlobalSetting.renderKatex, false);
+      await globalSettings.setBool(BoolGlobalSetting.renderKatex, true);
+      check(globalSettings).getBool(BoolGlobalSetting.renderKatex).isTrue();
 
       await prepareContent(tester, plainContent(ContentExample.mathBlock.html));
-      tester.widget(find.text(r'\lambda', findRichText: true));
+      tester.widget(find.text('λ', findRichText: true));
     });
 
-    testWidgets('displays KaTeX content; experimental flag enabled', (tester) async {
+    testWidgets('displays KaTeX source; experimental flag disabled', (tester) async {
       addTearDown(testBinding.reset);
       final globalSettings = testBinding.globalStore.settings;
-      await globalSettings.setBool(BoolGlobalSetting.renderKatex, true);
-      check(globalSettings).getBool(BoolGlobalSetting.renderKatex).isTrue();
+      await globalSettings.setBool(BoolGlobalSetting.renderKatex, false);
 
       await prepareContent(tester, plainContent(ContentExample.mathBlock.html));
-      tester.widget(find.text('λ', findRichText: true));
+      tester.widget(find.text(r'\lambda', findRichText: true));
     });
   });
 
@@ -1031,23 +1031,23 @@ void main() {
         targetFontSizeFinder: mkTargetFontSizeFinderFromPattern(r'\lambda'));
     });
 
-    testWidgets('displays KaTeX source; experimental flag disabled', (tester) async {
+    testWidgets('displays KaTeX content; experimental flag enabled', (tester) async {
       addTearDown(testBinding.reset);
       final globalSettings = testBinding.globalStore.settings;
-      await globalSettings.setBool(BoolGlobalSetting.renderKatex, false);
+      await globalSettings.setBool(BoolGlobalSetting.renderKatex, true);
+      check(globalSettings.getBool(BoolGlobalSetting.renderKatex)).isTrue();
 
       await prepareContent(tester, plainContent(ContentExample.mathInline.html));
-      tester.widget(find.text(r'\lambda', findRichText: true));
+      tester.widget(find.text('λ', findRichText: true));
     });
 
-    testWidgets('displays KaTeX content; experimental flag enabled', (tester) async {
+    testWidgets('displays KaTeX source; experimental flag disabled', (tester) async {
       addTearDown(testBinding.reset);
       final globalSettings = testBinding.globalStore.settings;
-      await globalSettings.setBool(BoolGlobalSetting.renderKatex, true);
-      check(globalSettings.getBool(BoolGlobalSetting.renderKatex)).isTrue();
+      await globalSettings.setBool(BoolGlobalSetting.renderKatex, false);
 
       await prepareContent(tester, plainContent(ContentExample.mathInline.html));
-      tester.widget(find.text('λ', findRichText: true));
+      tester.widget(find.text(r'\lambda', findRichText: true));
     });
   });