chore(common): Update version in rendering changes article (#2436)

* chore(common): Update version in rendering changes article

* chore(common): link article in overview

Author: ntacheva

upgrade/rendering-changes/6-3-0.md renamed to upgrade/rendering-changes/7-0-0.md

@@ -1,12 +1,12 @@
 ---
-title: 6.3.0
-description: Handle the rendering changes in the 6.3.0 release of the Telerik UI for Blazor components.
-page_title: Rendering Changes in the 6.3.0 Release
-slug: changes-in-6-3-0
+title: 7.0.0
+description: Handle the rendering changes in the 7.0.0 release of the Telerik UI for Blazor components.
+page_title: Rendering Changes in the 7.0.0 Release
+slug: changes-in-7-0-0
 position: 970
 ---
 
-# Rendering Changes in 6.3.0
+# Rendering Changes in 7.0.0
 
 * [AIPrompt](#aiprompt)
 * [Gantt](#gantt)

upgrade/rendering-changes/list.md

@@ -10,6 +10,7 @@ position: 0
 
 As the Telerik UI for Blazor matures we will continuously optimize the HTML rendering and the usage of CSS classes. The rendering changes only affect the styling of the components if the application [overrides the built-in CSS styles]({%slug themes-override%}) or uses an outdated [custom theme]({%slug themes-customize%}). This article tracks the product versions with rendering changes.
 
+* [7.0.0]({%slug changes-in-7-0-0%})
 * [6.0.0]({%slug changes-in-6-0-0%})
 * [4.6.0]({%slug changes-in-4-6-0%})
 * [4.3.0]({%slug changes-in-4-3-0%})