Add automated test for "In place edit for application entries"

The manual test is here: In place edit for application entries (Since XWiki 12.3 RC1)

Existing automated coverage

• DocumentFieldsIT#titleAndContent: On an AWM entry view page, edits the Title document field in place (pencil, then check) and asserts the new value displayed and in the entries live table
• ClassSheetIT#createClass: In-place edit of custom class properties (pencil/check) on a non-AWM page using the default class sheet

Missing automated coverage

• Create an AWM app with several field types (e.g. Short Text, Number, Static List, Date)
• Add an entry, fill values and click Save & View
• On the entry view page, for each custom field click the pencil (EditablePropertyPane#clickEdit), change the value and click the check (clickSave)
• Assert each displayed value is updated
• Reload the page and assert the new values are persisted

Suggested location: xwiki-platform-core/xwiki-platform-appwithinminutes/xwiki-platform-appwithinminutes-test/xwiki-platform-appwithinminutes-test-docker/src/test/it/org/xwiki/appwithinminutes/test/ui/DocumentFieldsIT.java

Found by comparing the XWiki 18.4.4 manual test runs against the automated tests on master (a0055f10a1a).