[Enhancement] Add Apprise support (#170)

* [WIP] add settings sidebar entry and placeholder page

* [WIP] added placeholder UI and logic for settings form

* Added column and UI for apprise server

* Add some tests

* Added placeholder command runner for apprise

* [WIP] Adding apprise package

* Added apprise command runner

* Hooked up apprise notification module

* Ensured apprise was running in verbose mode

* Updated wording of apprise notification

* Added apprise to README

lib/pinchflat/settings/setting.ex

@@ -9,7 +9,9 @@ defmodule Pinchflat.Settings.Setting do
   @allowed_fields [
     :onboarding,
     :pro_enabled,
-    :yt_dlp_version
+    :yt_dlp_version,
+    :apprise_version,
+    :apprise_server
   ]
 
   @required_fields ~w(
@@ -21,6 +23,8 @@ defmodule Pinchflat.Settings.Setting do
     field :onboarding, :boolean, default: true
     field :pro_enabled, :boolean, default: false
     field :yt_dlp_version, :string
+    field :apprise_version, :string
+    field :apprise_server, :string
   end
 
   @doc false