fix: add base ShapeTokens style

Author: MihaiCristianCondrea

app/src/main/res/values/shape_tokens.xml

@@ -1,5 +1,8 @@
 <resources>
-    <style name="ShapeTokens.Clover">
+    <!-- Base style required for Material 3 shape tokens -->
+    <style name="ShapeTokens" />
+
+    <style name="ShapeTokens.Clover" parent="ShapeTokens">
         <item name="cornerFamily">rounded</item>
         <item name="cornerSizeTopLeft">24dp</item>
         <item name="cornerSizeTopRight">24dp</item>