Restructure the installation page (#1318)

Copy the PR #1307

Author: NataliaIvakina

modules/ROOT/content-nav.adoc

@@ -2,15 +2,14 @@
 * xref:introduction.adoc[]
 * xref:installation/index.adoc[]
 ** xref:installation/requirements.adoc[]
-** xref:installation/neo4j-browser.adoc[]
-** xref:installation/neo4j-desktop.adoc[]
 ** xref:installation/linux/index.adoc[]
 *** xref:installation/linux/debian.adoc[]
 *** xref:installation/linux/rpm.adoc[]
 *** xref:installation/linux/tarball.adoc[]
 *** xref:installation/linux/systemd.adoc[]
 ** xref:installation/osx.adoc[]
 ** xref:installation/windows.adoc[]
+** xref:installation/neo4j-desktop.adoc[]
 
 * xref:cloud-deployments/index.adoc[]
 ** xref:cloud-deployments/neo4j-aws.adoc[]

modules/ROOT/pages/installation/index.adoc

@@ -7,11 +7,10 @@ Neo4j can be installed in different deployment contexts, such as Linux, macOS, a
 The following topics are covered:
 
 * xref:installation/requirements.adoc[System requirements] -- The system requirements for a production deployment of Neo4j.
-* xref:installation/neo4j-browser.adoc[Neo4j Browser] -- About Neo4j Browser.
-* xref:installation/neo4j-desktop.adoc[Neo4j Desktop] -- About Neo4j Desktop.
 * xref:installation/linux/index.adoc[Linux] -- Installation instructions for Linux.
 * xref:installation/osx.adoc[macOS] -- Installation instructions for macOS.
 * xref:installation/windows.adoc[Windows] -- Installation instructions for Windows.
+* xref:installation/neo4j-desktop.adoc[Neo4j Desktop] -- About Neo4j Desktop.
 
 .Installation-free options
 [TIP]

modules/ROOT/pages/installation/neo4j-browser.adoc

@@ -17,5 +17,7 @@ This chapter covers the following topics:
 ** xref:tools/neo4j-admin/migrate-configuration.adoc[Migrate the Neo4j configuration file] -- How to migrate a Neo4j configuration file.
 ** xref:tools/neo4j-admin/validate-config.adoc[Validate configurations] -- How to validate Neo4j configuration files, including the Log4j files.
 * xref:tools/cypher-shell.adoc[Cypher Shell] -- How to use the Cypher Shell.
-
+* link:https://neo4j.com/docs/browser-manual/current/[Neo4j Browser] is a tool for developers to interact with the graph.
+It is the default interface for both Enterprise and Community Editions of the Neo4j database.
+Neo4j Browser is bundled with Neo4j DBMS, including both Neo4j Server and xref:installation/neo4j-desktop.adoc[Neo4j Desktop].