docs(alert-dialog): updated docs (#5371)

* docs(alert-dialog): updated dacs

* docs(alert-dialog): tabs to show variants and slot descriptions in anatomy

* docs(alert-dialog): updated confirmation variant with description from design docs

* docs(alert-dialog): added list of variants

Co-authored-by: Casey Eickhoff <[email protected]>

* docs(alert-dialog): added more clarity and alignment with design

Co-authored-by: Casey Eickhoff <[email protected]>

* docs(alert-dialog): added more clarity and alignment with design

Co-authored-by: Casey Eickhoff <[email protected]>

* docs(alert-dialog): modified based on on API and added more context

* docs(alert-dialog): reorganized and added contextual example

* docs(alert-dialog): matched button styles to design

* docs(alert-dialog): added more detail to buttons section

* docs(alert-dialog): ficed type

Co-authored-by: Rajdeep Chandra <[email protected]>

* docs(alert-dialog): fixed typo

Co-authored-by: Rajdeep Chandra <[email protected]>

* docs(alert-dialog): added link to design guidelines

* docs(alert-dialog): updated typo in primar button variant

* docs(alert-dialog): fixed typos

* docs(alert-dialog): added role, aria-labelledby and aria-describedby

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Co-authored-by: Casey Eickhoff <[email protected]>
Co-authored-by: Rajdeep Chandra <[email protected]>

Author: 3 people