Oppia Files

[Learners] Extend the Learn dropdown menu in the navbar to handle the case where there are multiple classrooms. https://github.com/oppia/oppia/pull/22436 [Learners] Add a link to the Oppia blog in the About menu in the navbar. https://github.com/oppia/oppia/pull/22891 [Learners] Prevent multiple-submit errors in the newsletter form in the site footer. https://github.com/oppia/oppia/pull/22664 [Learners] Get the redesigned learner dashboard ready for launch. https://github.com/oppia/oppia/pull/22736 [Learners] Rename revision cards to study guides, and rename tabs on the Topic Viewer page to Learn/Practice/Study. https://github.com/oppia/oppia/pull/22738 [Learners] Allow submitting multiple-choice answers with the Enter key in item selection input. https://github.com/oppia/oppia/pull/22658 [Creators] Fix error that arises when editing the name of a topic as a topic manager. https://github.com/oppia/oppia/pull/22346 [Creators] Fix discrepancies between the topic editor preview and learner view modes for the practice session feature. https://github.com/oppia/oppia/pull/21874 [Creators] Show a warning message to creators if a question in an exploration has duplicate answer groups. https://github.com/oppia/oppia/pull/22062 [Contributors] Fix a bug that resulted in errors arising after accepting/rejecting a translation and waiting for 30 seconds. https://github.com/oppia/oppia/pull/21885 [Contributors] Populate missing images in existing translation suggestions. https://github.com/oppia/oppia/pull/21378