v0.2.0

First stable release by the new maintainer. It shares no code with 0.1.0, so treat an upgrade from 0.1.0 as a move
to a new gem and start from the usage docs. The
alpha sections below record each change as it landed. This section gathers them in one place.

Added

• Phlex::Hanami::View and Phlex::Hanami::Layout, the base classes for a view and a layout, and
  Phlex::Hanami::Renderable for a Phlex::HTML base class you already have.
• Auto render. An action renders the Phlex view whose container key matches its own, so
  MyApp::Actions::Posts::Index renders MyApp::Views::Posts::Index with no response.render call and no
  configuration. An action with no matching view renders nothing, so a slice can move to Phlex one action at a time.
• A view receives the exposures and params its initialize asks for and drops the rest, so a stray query param does
  not raise. An initializer that takes ** receives all of it.
• A layout convention: Views::Layout in a slice wraps that slice's views. layout sets a different one, and
  layout nil opts out. The view renders before its layout, so a content_for set in the view shows up in the
  layout's head.
• The view context in every view and every component under it: path, url, asset_url, content_for,
  csrf_token, flash, session, request and more. A view reads the same whether or not hanami-view is bundled.
• t, which resolves a relative key against the view's container key, so t(".title") in
  MyApp::Views::Posts::Index looks up posts.index.title.
• Phlex::Hanami::Helpers, an opt in for Hanami's helper library, such as form_for and format_number. It needs
  hanami-view. Their output renders as markup rather than escaped twice, and Phlex keeps its own raw and tag.
• Phlex::Hanami::Component for everything below a view, Phlex::Hanami::Contextual for a component base class you
  already have, and support for Phlex kits.
• Phlex views for hanami-mailer, through Phlex::Hanami::Mailer::View and
  Phlex::Hanami::Mailer::Layout. A mailer renders the view whose container key matches its own, and the gem builds
  the plain text part from the HTML unless the view defines text_body.
• Phlex::Hanami::Testing::ViewHelpers, for testing a view or a component without a request, and
  require "phlex/hanami/rspec" to include them in every example group tagged type: :view.
• RBS signatures for the public API, shipped in sig.
• Usage docs for every part of the gem, including how it hooks into Hanami and why code reloading needs no extra
  work.