This closes#8744 and #9826.
It necessitated some customisation options for TwoStepButton. One is inlineText, which puts the confirmation text in the same line as the buttons. Also, there was a single-use configuration option named isInfoAction that I removed in favour of passing a set of class configuration options like this:
@classes={{hash
idleButton="is-warning"
confirmationMessage="inherit-color"
cancelButton="is-danger is-important"
confirmButton="is-warning"}}
Manual interventions:
• decorators on the same line for service and controller
injections and most computed property macros
• preserving import order when possible, both per-line
and intra-line
• moving new imports to the bottom
• removal of classic decorator for trivial cases
• conversion of init to constructor when appropriate
Going off of the error message being "Forbidden" was brittle to begin
with and no longer works with Fetch due to the error message coming from
jquery underpinnings that were unobserved by Ember Data's attempted
recreation.
