Feature/endgame play (#1)

* create endgame play section

* add cache tests

* normalise FENs - trim and fuill move to 1 on addition

* remove svg on root and allow navbar to exist across all pages

* update nav items

test/chesstrainer_web/live/endgame_live/player_index_test.exs

@@ -0,0 +1,28 @@
+defmodule ChesstrainerWeb.EndgameLive.PlayerIndexTest do
+  use ChesstrainerWeb.ConnCase
+
+  import Phoenix.LiveViewTest
+  import Chesstrainer.EndgamesFixtures
+
+  test "lists endgames with a play link per row", %{conn: conn} do
+    endgame = endgame_fixture()
+    other = endgame_fixture()
+
+    {:ok, _view, html} = live(conn, ~p"/endgames")
+
+    assert html =~ "Endgames"
+    assert html =~ endgame.key
+    assert html =~ other.key
+    assert html =~ ~p"/endgames/#{endgame}/play"
+    assert html =~ ~p"/endgames/#{other}/play"
+  end
+
+  test "navigating to a play page renders the board", %{conn: conn} do
+    endgame = endgame_fixture()
+
+    {:ok, view, _html} = live(conn, ~p"/endgames/#{endgame}/play")
+
+    assert has_element?(view, "#endgame-board")
+    assert has_element?(view, ~s{a[href="/endgames"]})
+  end
+end