feat: add application.properties for Neo4j configuration and update .gitignore

Author: simonskodt

.gitignore

@@ -215,6 +215,4 @@ buildNumber.properties
 
 # End of https://www.toptal.com/developers/gitignore/api/java,maven,visualstudiocode,intellij
 
-.env
-application.properties
-src/main/resources/application.properties
+.env

src/main/resources/application.properties

@@ -0,0 +1,5 @@
+spring.application.name=citenetwork
+spring.neo4j.uri=${NEO4J_URI}
+spring.data.neo4j.database=neo4j
+spring.neo4j.authentication.username=${NEO4J_USERNAME}
+spring.neo4j.authentication.password=${NEO4J_PASSWORD}