AO3-6688 Make accidental history deletions less likely

[forceofcalm]

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• Have you added tests for any changed functionality?
• Have you added the Jira issue number
  as the first thing in your pull request title (e.g. AO3-1234 Fix thing)
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Issue

https://otwarchive.atlassian.net/browse/AO3-6688

Purpose

What does this PR do?

Adds a confirmation page for history deletion instead of an alert pop-up.
Updates language from "Clear History" to "Clear Entire History".

Testing Instructions

1. Log in
2. Have some works in your history
3. Go to History
4. Click "Clear Entire History"
5. Be redirected to new confirmation page
6. Make sure History was not cleared yet
7. Return to confirmation page
8. Click "Yes, Clear Entire History"
9. Have History be cleared

Credit

calm (they/them)

[sarken]

I think the tests are failing in part because you need to add this to config/routes.rb as well. After that, you'll probably still need to update the tests to take into account the additional steps of clicking the "Yes, Clear Entire History" button on the new page.

[forceofcalm]

Hey, I'm trying to resolve these failing tests, but I think I'm mostly just digging a deeper hole into things I don't understand. Would I be able to get some guidance, please?

[Bilka2]

I think my comments should address the test failures.

[Bilka2]

It looks like form_for doesn't like getting passed a collection of records. Based on the Rails guide, I think we should be using form_with in combination with a symbol instead. Solely based on the docs, untested:

Suggested change

	<%= form_for(@readings, html: { method: "post", action: "clear", class: "simple destroy" }) do |f| %>
	<%= form_with(model: :reading, method: :post, url: { action: "clear" }, class: "simple destroy") do |f| %>

[Bilka2]

Internationalizing a page is not as simple as only replacing ts with t. The gist is that you need to use a locale key inside t() and then place the English text into the locale file.

Suggested change

	<h2 class="heading"><%= t("History") %></h2>
	<h2 class="heading"><%= t(".page_heading") %></h2>

And in config/locales/views/en.yml:

readings:
  index:
    page_heading: History

See the wiki page for I18n for more in-depth information and examples.