officejs_support_request_ui: updates to stop using unsafe CSP

 - switch to programmatic creation of DOM element using domsugar
  instead of using handlebars which needs CSP
 - use gadget_html_viewer to display post contents
 - more translation support
6 jobs for for_testrunner_2
Status Job ID Name Coverage
  External
failed ERP5.CodingStyleTest-TestRunner2

00:53:09

failed ERP5.UnitTest-TestRunner2

03:14:16

failed ERP5.UnitTest-Zope2-ForTestRunner2

02:38:42

failed ERP5.CodingStyleTest-TestRunner2

passed ERP5.UnitTest-TestRunner2

failed ERP5.UnitTest-Zope2-ForTestRunner2