docs: Revamp Application Overview Doc (#55)

* docs: Revamp Application Overview Doc

* added image ations

* fixed formatting

* changed the name from overview to Application Overview

* docs: implemented the requested changes

* docs: changes implemented

* docs:fixes links

* docs: removed unnecessary files

* docs: minor fixes

* docs: minor fixes v2

Author: Hii-Arpit

docs/SUMMARY.md

@@ -102,7 +102,7 @@
     * [Debugging Deployment And Monitoring](user-guide/debugging-deployment-and-monitoring.md)
     * [Using Ephemeral Containers](user-guide/app-details/ephemeral-containers.md)
     * [Application Metrics](user-guide/creating-application/app-metrics.md)
-  * [Overview](user-guide/creating-application/overview.md)
+  * [Application Overview](user-guide/creating-application/overview.md)
 * [Jobs](user-guide/jobs/README.md)
   * [Create a new job](user-guide/jobs/create-job.md)
   * [Configurations](user-guide/jobs/configuration-job.md)