Action View, Active Record and Active Storage use the 'What is
FRAMEWORK?' title for the framework introduction, the other frameworks
use 'Introduction'. The 'What is' form is more descriptive and better
for SEO.

This change makes the titles more consistent by using the 'What is
FRAMEWORK?' title for the other frameworks.

Define the word "failed", then clarify the default behavior for failed jobs.

Changes in `queue_name_prefix` no longer affects unrelated jobs.

This commit allows ActiveJob to serialize classes and modules without a custom serializer. This allows for workflows like:

```
class EmailJob < ApplicationJob
  queue_as :default
  def perform(template_class, *arguments)
    template_class.new(*arguments).send!
  end
end

module Email
  class FooTemplate ... end
  class BarTemplate ... end
end

EmailJob.perform_later(Email::FooTemplate, ...)
EmailJob.perform_later(Email::BarTemplate, ...)
```

Currently this is only achieveable through a custom serializer or through constantizing in each instance.

Delayed Job is mentioned multiple times in the document, but it is not linked from anywhere.

ApplicationJob should be inherits ActiveJob::Base

http links will be redirected to the https version, but still better to
just directly link to the https version.

As discussed in #33203 rails command already looks for, and runs,
bin/rails if it is present.

We were mixing recommendations within guides and USAGE guidelines,
in some files we recommended using rails, in others bin/rails and
in some cases we even had both options mixed together.

[ci skip] A regular expression was used to find a lot of missing Oxford
commas and add them.  The regular expression was as follows.

", ([a-zA-Z0-9.\`:'\"]+ ){1,6}(or|and) "

`it's` -> `its`

Fixes a typo

Skipping over 2.4.0 to sidestep the `"symbol_from_string".to_sym.dup` bug.

References #32028

Add `:nodoc:` to `ActiveJob::Serializers`
Add `:doc:` to `ActiveJob::Serializers::ObjectSerializer#klass`
Express `ActiveJob::Serializers::ObjectSerializer#klass` as private method

We can speed up things for the supported types by keeping the code in the
way it was.

We can also avoid to loop trough all serializers in the deserialization by
trying to access the class already in the Hash.

We could also speed up the custom serialization if we define the class
that is going to be serialized when registering the serializers, but
that will remove the possibility of defining a serialzer for a
superclass and have the subclass serialized using it.

* Add Sneakers link to documentation list.

The advice for symbol/block form is taken from the Active Record guides.

[ci skip]

[ci skip]

The hyphenated form "back-end" only appears once in this guide; elsewhere, the un-hyphenated form "backend" is used consistently.

The immediate runner is no longer default, the async adapter is.

@prathamesh-sonpatki

[ci skip] Added note on child class maintaining parent's queue adapter.

[ci skip] Added note on child class maintaining parent's queue adapter.

[ci skip] removed documentation for child class inheriting the queue adapter.

If you can't start your queue, you won't process much. This change adds external links to the Queue backends that have Active Job specific docs.

Correct spelling is "Esperanto": 

https://en.wikipedia.org/wiki/Esperanto

A section explaining how to pass arguments to Jobs has been added.

[ci skip] How to pass arguments to ActiveJob Jobs

Removed the "how to pass arguments" from what you will know section

[ci skip] improving Enqueue Job section

Using GuestsCleanupJob rather than MyJob for coherence.

[ci skip] Passing args section merged with enqueuing jobs

Passing args is now explained through examples withing Enqueuing the Jobs section

[ci skip] Unnecessary example removed

[ci skip] Typo fixed (missing as)