Fix task page bugs

[GilbertCherrie]

Fix the delete on the tasks page.

Before:
Clicking delete on the task page made it seem like nothing was happening because no flash message would appear. The tasks are not deleted immediately, instead the deletion of the task is queued so it should alert the user of this in a flash message or else it seems like the task is not being deleted.

After:
This pr fixes this issue by alerting the user that the task deletion is queued and will occur.

[Fryguy]

Suggested change

	checked_items = find_checked_items
	new_checked_items = []
	checked_items.each do |item|
	if params["select-row-#{item}"] == "on"
	new_checked_items.push(item)
	end
	end
	new_checked_items = find_checked_items.select { |item| params["select-row-#{item}"] == "on" }

[Fryguy]

I'll be honest I don't understand what this code is saying. Do only newly checked items have the "select-row-" on? If we're deleting all checked items, why do we then only delete the newly checked items?

[GilbertCherrie]

The delete button doesn't instantly delete the tasks, it instead queues their deletion. So when the table is reloaded and user resubmits it with the previous items checked off you don't want to queue their deletion again

[miq-bot]

Checked commit GilbertCherrie@9ddecb4 with ruby 3.1.5, rubocop 1.56.3, haml-lint 0.62.0, and yamllint
2 files checked, 2 offenses detected

app/controllers/miq_task_controller.rb

• ⚠️ - Line 132, Col 5 - Lint/UselessAssignment - Useless assignment to variable - checked_items.
• ❗ - Line 338, Col 93 - Rails/TimeZone - Do not use Time.now without zone. Use one of Time.zone.now, Time.current, Time.now.in_time_zone, Time.now.utc, Time.now.getlocal, Time.now.xmlschema, Time.now.iso8601, Time.now.jisx0301, Time.now.rfc3339, Time.now.httpdate, Time.now.to_i, Time.now.to_f instead.