Refactor the doc to focus on auto-indexing with scip-java as an example

Author: Rhia2

docs/code-search/code-navigation/private-maven-repository-configuration-scip-java.mdx renamed to docs/code-search/code-navigation/private-maven-repository-configuration.mdx

@@ -1,7 +1,7 @@
-### Configuring Maven to Use a Private Repository for SCIP-JAVA
+### Configuring Maven to Use a Private Repository for Auto-Indexing
 
 #### Overview
-In Sourcegraph, configuring SCIP-JAVA to use a private Maven repository, such as Nexus or Artifactory, is essential when dependencies are retrieved from private repositories that require authentication (as opposed to public repositories such as Maven Central). This guide covers steps to set up Maven for SCIP-JAVA indexing with a private repository, ensuring secure and consistent dependency resolution.
+In Sourcegraph, configuring Maven to use a private repository, such as Nexus or Artifactory, is essential when dependencies are retrieved from private repositories that require authentication (as opposed to public repositories such as Maven Central). This guide covers steps to set up Maven for SCIP-JAVA indexing with a private repository, ensuring secure and consistent dependency resolution.
 
 #### Step 1: Testing the Configuration on a Single Repository