Add explosion animation when nuking working tree

I've been thinking about this for a while: I think it looks really cool if nuking your working tree
actually results in a nuke animation.

So I've added an opt-out config for it

pkg/integration/tests/demo/nuke_working_tree.go

@@ -0,0 +1,45 @@
+package demo
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var NukeWorkingTree = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Nuke the working tree",
+	ExtraCmdArgs: []string{"status"},
+	Skip:         false,
+	IsDemo:       true,
+	SetupConfig: func(config *config.AppConfig) {
+		// No idea why I had to use version 2: it should be using my own computer's
+		// font and the one iterm uses is version 3.
+		config.UserConfig.Gui.NerdFontsVersion = "2"
+		config.UserConfig.Gui.AnimateExplosion = true
+	},
+	SetupRepo: func(shell *Shell) {
+		shell.EmptyCommit("blah")
+		shell.CreateFile("controllers/red_controller.rb", "")
+		shell.CreateFile("controllers/green_controller.rb", "")
+		shell.CreateFileAndAdd("controllers/blue_controller.rb", "")
+		shell.CreateFile("controllers/README.md", "")
+		shell.CreateFileAndAdd("views/helpers/list.rb", "")
+		shell.CreateFile("views/helpers/sort.rb", "")
+		shell.CreateFileAndAdd("views/users_view.rb", "")
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		t.SetCaptionPrefix("Nuke the working tree")
+
+		t.Views().Files().
+			IsFocused().
+			Wait(1000).
+			Press(keys.Files.ViewResetOptions).
+			Tap(func() {
+				t.Wait(1000)
+
+				t.ExpectPopup().Menu().
+					Title(Equals("")).
+					Select(Contains("Nuke working tree")).
+					Confirm()
+			})
+	},
+})

pkg/integration/tests/test_list.go

@@ -93,6 +93,7 @@ var tests = []*components.IntegrationTest{
 	demo.CherryPick,
 	demo.CommitAndPush,
 	demo.InteractiveRebase,
+	demo.NukeWorkingTree,
 	diff.Diff,
 	diff.DiffAndApplyPatch,
 	diff.DiffCommits,