Merge branch 'material' into 'master'

widgetapp + material bug fix (temp)

See merge request upm-packages/ui-widgets/com.unity.uiwidgets!124

Runtime/material/theme.cs

                 return inheritedTheme.theme.data;
             }
 
-            MaterialLocalizations localizations = MaterialLocalizations.of(context);
+            //MaterialLocalizations localizations = MaterialLocalizations.of(context);
             ScriptCategory category = ScriptCategory.englishLike;
             ThemeData theme = inheritedTheme?.theme?.data ?? _kFallbackTheme;
             return ThemeData.localize(theme, theme.typography.geometryThemeFor(category));