[Enhancement] Adds in-app diagnostics page (#243)

* Added improved sidebar menuing

* Added new view for getting diagnostic data

* Changed default log level to debug

* Disabled false-positive static analysis

lib/pinchflat_web/controllers/settings/setting_controller.ex

@@ -23,4 +23,20 @@ defmodule PinchflatWeb.Settings.SettingController do
         render(conn, "show.html", changeset: changeset)
     end
   end
+
+  def app_info(conn, _params) do
+    render(conn, "app_info.html")
+  end
+
+  def download_logs(conn, _params) do
+    log_path = Application.get_env(:pinchflat, :log_path)
+
+    if log_path && File.exists?(log_path) do
+      send_download(conn, {:file, log_path}, filename: "pinchflat-logs-#{Date.utc_today()}.txt")
+    else
+      conn
+      |> put_flash(:error, "Log file couldn't be found")
+      |> redirect(to: ~p"/app_info")
+    end
+  end
 end