DOC-4592: Astra CLI version 0.6 (#18)

* Update attributes

* Initial updates to landing page

* Update installation page

* Relocate icons

* More installation updates

* Clean up landing page

* Add more installation methods

* More installation fine-tuning

* Update getting-started

* Minor tweaks

* Remove remote includes

* Switch to versionless component

* Rewrite getting-started

* Start reformatting managing.adoc

* More updates

* Minor updates to getting-started

* Minor fix to streaming dotenv command

* More updates to managing

* Revert version change to try and fix preview build

* Go back to versionless

* Move cli config info to getting-started

* Minor update to roles section title

* Another small fix to managing

* Remove TOC from managing

* Add next steps to getting-started

* Update local preview; add icon and svg macros

* Minor fixes to db topic

* Draft changes to streaming topic

* Move CDC instructions to DB page

* More CDC cleanup

* Add administration page

* More commands and refinement

* Multi-region commands and more refinement

* Refine

* More streaming commands and refinement

* Change full options blocks to collapsibles

* Small alignments

* Change DB name to DB ID

* Version 0.6

* Curl to curl

* Minor installation updates

* Update db manage

* Add new db commands

* Add remaining commands

* Minor IA updates

* Incorporate feedback

* Add GH release shield

Co-authored-by: Madhavan <msmygit@users.noreply.github.com>

* DOC-4703: Update download-scb command

* Minor word change

---------

Co-authored-by: Madhavan <msmygit@users.noreply.github.com>

Author: eric-schneider

docs-src/astra-cli-core/antora.yml

@@ -1,7 +1,26 @@
 name: 'astra-cli'
 title: 'Astra CLI'
-version: '0.2'
+version: ~
 start_page: 'index.adoc'
 
 nav:
 - modules/ROOT/nav.adoc
+
+asciidoc:
+  attributes:
+    product: 'Astra CLI'
+    product-version: '0.6'
+    astra: 'Astra'
+    db-serverless: 'Serverless (Non-Vector)'
+    db-serverless-vector: 'Serverless (Vector)'
+    db-classic: 'Classic'
+    astra-api: 'Data API'
+    url-astra: 'https://astra.datastax.com'
+    link-astra-portal: '{url-astra}[{astra_ui}^]'
+    py-client-api-ref-url: 'xref:astra-api-docs:ROOT:attachment$python-client/astrapy'
+    ts-client-api-ref-url: 'xref:astra-api-docs:ROOT:attachment$typescript-client'
+    java-client-api-ref-url: 'xref:astra-api-docs:ROOT:attachment$java-client'
+    cass-short: 'Cassandra'
+    scb-long: Secure Connect Bundle (SCB)
+    scb-cap: Secure Connect Bundle
+    scb: SCB

docs-src/astra-cli-core/modules/ROOT/attachments/cities.csv

@@ -2,3 +2,6 @@
 * xref:getting-started.adoc[]
 * xref:managing.adoc[]
 * xref:astra-streaming-cli.adoc[]
+* xref:administration.adoc[]
+* https://github.com/datastax/astra-cli[GitHub repo]
+* https://github.com/datastax/astra-cli/releases[Release notes]