DOC-3205: Update docs with Blazor changes

[spocke]

Ticket: DOC-3205
Parent: TINY-11910

Site: Staging branch

Changes:

• Adds docs for the new Readonly property and the change to how the Disable works.

Pre-checks:

• Branch prefixed with feature/<version>/, hotfix/<version>/, staging/<version>/, or release/<version>/.

• modules/ROOT/nav.adoc has been updated (if applicable).

• Included a release note entry for any New product features.

• If this is a minor release, updated productminorversion in antora.yml and added new supported versions entry in modules/ROOT/partials/misc/supported-versions.adoc.

• Don't merge until we merge and release the new Blazor integration

Review:

• Documentation Team Lead has reviewed

[kemister85]

LGTM - i will plan to make content changes to the whole document at a later date to improve readability. But this addition lines up with the current layout.

[ShiridiGandham]

LGTM