revert modeling-fundamentals to sandbox

Author: adam-cowley

asciidoc/courses/modeling-fundamentals/course.adoc

@@ -4,7 +4,7 @@
 :usecase: blank-sandbox
 :graph-analytics-plugin: true
 :vector-optimized: true
-:database-provider: aura
+:database-provider: sandbox
 :status: active
 :duration: 2 Hours
 :caption: Learn how to design a Neo4j graph using best practices