-action module refs in Actions.sys.mjs have been renamed to 'actions' to establish consistency with the the plurality
of the filename, and to eliminate warning flags regarding action param naming conflicts with aforementioned module.
-Renamed previously existing actions variable declarations inside Actions.sys.mjs to filteredActions,
actionsFromSequence and groupedActions to prevent new naming conflict with module.
-Adjusted action imports from Action.sys.mjs across remote codebase to instead make callbacks to actions.
-Changed certain pre-existing actions declarations to 'chain' to avoid naming conflict in test_Actions.js,
along with changing action references to actions.
-(The previously modified 'action' parameters in Action.sys.mjs have been restored to their original names to maintain BiDi specs,
contrary to original Differential title)
Differential Revision: https://phabricator.services.mozilla.com/D232825
cf77a42932