Allow to jump to exact key in i18n locale file

[rnestler]

It would be nice if I could jump directly to the key in the locale file with :Elocale or a similar command when hovering inside a t().

So for example (* indicating cursor position):

I18n.t("admin.actions.toggle_lock.fla*sh.unlocked")

should jump to one of these locations

  admin:
    actions:
      toggle_lock:
        flash:* # if we want to support jumping to the section
          unlocked: *"User unlocked successfully." # if we want to just jump to the location of the full key
          locked: "User locked successfully."

[cb341]

This would be a very cool addition!

It would be nice if it would be possible to detect namespaced translations too.
Such as croms.en.yml

[cb341]

Possibly duplicate:

• "gf" from e.g. "t:('foo.bar.baz')" could jump to locale file #114
• Command (":Rlocales"?) to open locale files in splits #113

[cb341]

I also think that it would be very useful to jump to human attribute name:

User.human_attribute_name(:use*name),

en:
  activerecord:
    attributes:
      user:
        username: *"Username (used for login)"