[views] remove breadcrumbs usage to retrieve last visited page
Use JavaScript history.back to go to the last visited page. Rename
_return_to_lastpage to _redirect as it becomes misnamed.
Drop `test_redirect_default` test in `unittest_views_basecontrollers`
which essentially tested this (now removed) breadcrumbs "feature".
Closes #5456850.
<table class="attributeForm" style="width:100%;" tal:attributes="id tab_id | nothing; class tab_class | nothing;"> <tr tal:iter="widget lines"> <th class="labelCol" tal:content="structure python:widget.render_label(entity)">attrname</th> <td tal:define="error python:widget.render_error(entity)" style="width:100%;" tal:attributes="class python:error and 'error' or nothing"> <div tal:replace="structure error">error message if any</div> <div tal:replace="structure python:widget.edit_render(entity)" >widget (input, textarea, etc.)</div> <div tal:replace="structure python:widget.render_help(entity)">format help if any</div> </td> </tr> </table>