Rename experiment name.

Author: isoos

app/lib/frontend/handlers/experimental.dart

@@ -14,7 +14,7 @@ const _publicFlags = <PublicFlag>{
 
 final _allFlags = <String>{
   'dark-as-default',
-  'license',
+  'expose-licence-diff',
   ..._publicFlags.map((x) => x.name),
 };
 
@@ -89,7 +89,7 @@ class ExperimentalFlags {
 
   bool get isDarkModeDefault => isEnabled('dark-as-default');
 
-  late final isLicenseEnabled = isEnabled('license');
+  late final isExposeLicenseDiffEnabled = isEnabled('expose-licence-diff');
 
   String encodedAsCookie() => _enabled.join(':');
 

app/lib/frontend/templates/package.dart

@@ -389,7 +389,7 @@ Tab _licenseTab(PackagePageData data) {
   if (!data.hasLicense) {
     content = d.text('No license file found.');
   } else if (hasEditOpData &&
-      requestContext.experimentalFlags.isLicenseEnabled) {
+      requestContext.experimentalFlags.isExposeLicenseDiffEnabled) {
     final text = data.asset!.textContent!;
     final opAndLicensePairs =
         licenses