web/admin: use attribute naming scheme for attributes (#14644)

web/standards: use attribute naming scheme for attributes

## What

Renamed the 'inputHint' attribute to 'input-hint', because it is an attribute, not a property.
Properties are camelCased, but attributes are kebab-cased.

Updated all instances where this appears with the usual magic:

```
$ perl -pi.bak -e 's/inputHint="code"/input-hint="code"/' $(rg -l 'inputHint="code"')
```

This fix is in preparation for both the Patternfly 5 project and the Schema-Driven Forms project.

* Revision: You almost certainly do NOT want every field to be reflected.  Booleans are okay, especially for fields that may be changed internally but need to be read by screen-readers, sunch as 'hidden' or 'invalid'.  But if a field is a string or a number and has a default value, you do not want it to be reflected.

web/src/admin/applications/wizard/steps/providers/ak-application-wizard-provider-for-rac.ts

@@ -57,7 +57,7 @@ export class ApplicationWizardRACProviderForm extends ApplicationWizardProviderF
                     help=${msg(
                         "Determines how long a session lasts before being disconnected and requiring re-authorization.",
                     )}
-                    inputHint="code"
+                    input-hint="code"
                 ></ak-text-input>
 
                 <ak-form-group .expanded=${true}>