* New documentation of the 3 automated proactive installations

* Fix upper/lower cases

* Add section about Database Purge Operation in Kubernetes

* Apply reviews

DynamicPolicy: better explanation of loadFactor parameters

Also applied minor reviews.

* Add documentation for Keycloak authentication

* change images size

* fix typo

* address reviewer comments

* address reviewer comments

* address reviewer comments

* address reviewer comments

* address reviewer comments

* address reviewer comments

* fix typos

* Add documentation for Keycloak authentication

* change images size

* fix typo

* address reviewer comments

* address reviewer comments

* address reviewer comments

* address reviewer comments

* address reviewer comments

* address reviewer comments

DynamicPolicy: add canonical examples

DynamicPolicy: update SpEL documentation

Add DynamicPolicy scaleNodesExpression documentation

* Add PSA and Notification Client docs

* Add javadoc links for PSA and Notification clients

* Fix section title

* rollback scheduler.properties changes

* Apply Fabien's comments

* Fix javadoc links

* Refactor validation documentation

* Remove a couple bold text

Add loadFactorLegacyBehavior documentation

Add loadFactorRoundingUp documentation

Update loadFactor and globalScope documentation

* Azure ScaleSet Spot related properties updates

* Apply denis suggestions

* Add documentation for new Spot related parameters for AZure Scale Set infrastructure

* Apply comment: Specify currency for maxPrice

Add RESOURCE_TAGS documentation

- Add screenshot below Variables section to show new display (hidden + advanced)

Add rm model token nodeSource filter

update DynamicPolicy documentation

* Small fix in clean script description

* Small fix in clean script description

* Small fix in clean script description

* Small fix in clean script description

* Update some doc text and screenshots. JP - notif

* Apply mboussa review + fix menu not displayed

* Updating the PAIO Overview section

* Updating the Overview section with new screenshots and text of the ProActiveUserGuide documention

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Co-authored-by: Andrews Cordolino Sobral <andrewssobral@users.noreply.github.com>