docs(product): add banners for Cube-Metabase event

Author: hassankhan

docs/docs-new/pages/product/configuration/visualization-tools/metabase.mdx

@@ -1,10 +1,13 @@
----
-redirect_from:
-  - /config/downstream/metabase
----
-
 # Metabase
 
+<InfoBox heading="Introducing Cube's Semantic Layer Sync with Preset">
+
+Gain instant insights from your data. Join [our webinar on August 30 at 9:00am
+PST](https://cube.dev/events/cube-metabase-webinar) to explore how Cube & Metabase streamline data analysis, leveraging Cube's
+Semantic Layer Sync.
+
+</InfoBox>
+
 [Metabase][metabase-oss] is an open-source way to help everyone in your company
 to ask questions and learn from data. There's also a fully-managed [cloud
 service][metabase] for Metabase.

docs/docs-new/pages/product/configuration/visualization-tools/superset.mdx

@@ -6,15 +6,6 @@ redirect_from:
 
 # Superset
 
-<InfoBox heading="Introducing Cube's Semantic Layer Sync with Preset">
-
-Tune into
-[our webinar on June 21st](https://cube.dev/events/introducing-semantic-layer-sync-with-preset)
-to see the easiest way to integrate semantics layers with the most popular open
-source BI tool, [Preset](https://preset.io).
-
-</InfoBox>
-
 [Apache Superset][superset] is a popular open-source data exploration and
 visualization platform. [Preset][preset] is a fully-managed service for
 Superset.

docs/docs-new/pages/product/workspace/semantic-layer-sync.mdx

@@ -1,10 +1,13 @@
----
-redirect_from:
-  - /semantic-layer-sync
----
-
 # Semantic Layer Sync
 
+<InfoBox heading="Introducing Cube's Semantic Layer Sync with Preset">
+
+Gain instant insights from your data. Join [our webinar on August 30 at 9:00am
+PST](https://cube.dev/events/cube-metabase-webinar) to explore how Cube & Metabase streamline data analysis, leveraging Cube's
+Semantic Layer Sync.
+
+</InfoBox>
+
 Semantic Layer Sync synchronizes the [data model][ref-data-model] of a semantic
 layer from Cube to BI tools. It's the easiest way to connect a BI tool to Cube.