Merge pull request #12243 from edx/usman/tnl4416-spec-nesting

cms/static/coffee/spec/main.coffee

cms/static/coffee/spec/main_squire.coffee

cms/static/js/spec/views/xblock_spec.js

cms/static/karma_cms.conf.js

cms/static/karma_cms_squire.conf.js

common/static/common/js/spec/main_requirejs.js

common/static/common/js/utils/require-serial.js

common/static/karma_common_requirejs.conf.js

...apps/teams/static/teams/js/spec/teams_tab_factory_spec.js

...goapps/teams/static/teams/js/spec/views/teams_tab_spec.js

lms/djangoapps/teams/static/teams/js/views/teams_tab.js

lms/static/js/spec/main.js

lms/static/karma_lms.conf.js