ui: persist node drain settings

[lgfa29]

Persist drain settings in local storage so users don't have to set them again while draining multiple nodes.

Closes #11123

[github-actions]

Ember Asset Size action

As of 0eaa94a

Files that got Bigger 🚨:

File	raw	gzip
nomad-ui.js	+724 B	+147 B

Files that stayed the same size 🤷‍:

File	raw	gzip
vendor.js	0 B	0 B
nomad-ui.css	0 B	0 B
vendor.css	0 B	0 B

[github-actions]

Ember Test Audit comparison

	main	0eaa94a	change
passes	1194	1194	0
failures	0	0	0
flaky	0	1	+1
duration	9m 16s 575ms	8m 43s 680ms	-32s 895ms

[github-actions]

Ember Test Audit flaky tests

Ember Test Audit detected these flaky tests on main:

• Acceptance | task group detail: /jobs/:id/:task-group second breadcrumb should link to the job for the task group

Ember Test Audit detected these flaky tests on b58f27a:

• Acceptance | task group detail: /jobs/:id/:task-group second breadcrumb should link to the job for the task group
• Integration | Component | TopoViz: clicking on an allocation in a deeply nested TopoViz::Node will associate sibling allocations with curves
• Integration | Component | TopoViz: when the count of sibling allocations is high enough relative to the node count, curves are not rendered
• Integration | Utility | exec-socket-xterm-adapter: resizing the window passes a resize message through the socket

[ChaiWithJai]

This is a learning question. Why wouldn't we put this into a clean up hook?

hooks.afterEach(function() {
  window.localStorage.clear();
}

Isn't that more in line with what we're trying to do?

[lgfa29]

It's mostly just two different perspectives. One says "make sure we have a clean environment before running the test", the other says "make sure we clean-up after ourselves before we leave".

The only difference is on the edges of the test cases. with an afterEach, the first test may run with in a dirty environment, and with beforeEach the last test case may leave some side effects behind.

To avoid these problems it's important to keep tests consistent, and all other tests modules that use localStorage clears it with beforeEach.

[ChaiWithJai]

LGTM only 2 small non-blocking comments.

[github-actions]

Ember Test Audit flaky tests

Ember Test Audit detected these flaky tests on 0eaa94a:

• Acceptance | task group detail: /jobs/:id/:task-group second breadcrumb should link to the job for the task group

[github-actions]

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