Using a checkbox wasn't very intuitive because checkboxes are
checked/unchecked when clicked on even if there's an error in the
request. Usually, when checkboxes appear on a form, they don't send any
information to the server unless we click a button to send the form.
So we're using a switch instead of a checkbox, like we did to
enable/disable phases in commit 46d8bc4f0.
Note that, since we've got two switches that match the default
`dom_id(record) .toggle-switch` selector, we need to find a way to
differentiate them. We're adding the `form_class` option for that.
Also note that we're now using a separate action and removing the
JavaScript in the `update` action which assumed that AJAX requests to
this action were always related to updating the `visible_to_valuators`
attribute.
Since this button is replaced by a new element in an AJAX call, nothing
was focused after pressing it.
So we're reusing the code we used to enable/disable budget phases, which
already dealt with this issue.
Using a button tag, it's possible for every user to "click" the element.
Besides, we don't need to call the `preventDefault` function, because
buttons with type "button" don't do anything by default.
Note this rule does still allow us to add new lines after opening tags;
it just makes sure that if we do, we also add it in closing tags.
Likewise, if we don't add it in the opening tag, it forces us not to add
it in the closing tag either.
I don't have a strong preference about either style; in these cases I've
chosen the latter because it seemed more common in our code.
There are some sections where we are not reusing it:
* The budget investments search is completely different, so this
component isn't appropriate there
* Booth assignment and officers are slightly different, and I'm not
entirely sure it's safe to refactor these cases
We were writing the same text over and over for the same translations.
Since they all serve the same function, it's perfectly fine for them to
have the same text, and so we can have a shared translation.
It turns out it is not necessary to downcase and underscore
locale names to use the globalize-accessor gem. The gem
will automatically underscore the locale name when defining and
calling the accessor methods.