[DOCS] Dashboard docs refresh for 7.11 (#85342)

* [DOCS] 7.11 Dashboard docs refresh

* [Lens] end to end guide

* Fixes to writer errors

* Fixes errors

* Fixes error

* errors

* small corrections in e2e

* Introduction, CSV download, and end-to-end guide

* End-to-end guide

* End-to-end guide and intro

* Fixes broken external links

* Update docs/user/dashboard/dashboard.asciidoc

Co-authored-by: Wylie Conlon <wylieconlon@gmail.com>

* Update docs/user/dashboard/dashboard.asciidoc

Co-authored-by: Wylie Conlon <wylieconlon@gmail.com>

* Update docs/user/dashboard/dashboard.asciidoc

Co-authored-by: Wylie Conlon <wylieconlon@gmail.com>

* Update docs/user/dashboard/lens-end-to-end/lens-end-to-end.asciidoc

Co-authored-by: Wylie Conlon <wylieconlon@gmail.com>

* Update docs/user/dashboard/lens-end-to-end/lens-end-to-end.asciidoc

Co-authored-by: Marta Bondyra <marta.bondyra@gmail.com>

* Update docs/user/dashboard/lens-end-to-end/lens-end-to-end.asciidoc

Co-authored-by: Wylie Conlon <wylieconlon@gmail.com>

* Update docs/user/dashboard/lens-end-to-end/lens-end-to-end.asciidoc

Co-authored-by: Marta Bondyra <marta.bondyra@gmail.com>

* Review comments

* Review comments and Vega

* Vega tutorials

* Timelion changes

* Bug fixes and clean up

* Introduction

* Clean up

* Link fixes

* Broken links

* Fixes Timelion link

* Minor intro changes

* Fixes Timelion link

* Vega changes

* Add reference content, and move Lens docs to their own page

* Update from review

* Review comments

* Link fixes

* Clean up

Co-authored-by: Marta Bondyra <marta.bondyra@elastic.co>
Co-authored-by: Wylie Conlon <wylieconlon@gmail.com>
Co-authored-by: Marta Bondyra <marta.bondyra@gmail.com>

docs/getting-started/quick-start-guide.asciidoc

@@ -106,7 +106,7 @@ For more information, refer to <<dashboard,*Dashboard*>>.
 [[create-a-visualization]]
 === Create a visualization panel
 
-To create a treemap panel that shows the top regions and manufacturers, use *Lens*, then add the treemap panel to the dashboard.
+Create a treemap panel that shows the top regions and manufacturers, then add the panel to the dashboard.
 
 . From the toolbar, click *Edit*, then click *Create new*.
 
@@ -132,7 +132,7 @@ The treemap appears as the last visualization panel on the dashboard.
 [role="screenshot"]
 image::getting-started/images/tutorial-final-dashboard.gif[Final dashboard with new treemap visualization]
 +
-For more information, refer to <<lens, *Lens*>>.
+For more information, refer to <<dashboard,Dashboard>>.
 
 [float]
 [[quick-start-whats-next]]