Fix more unstable tests

Similar to what was done in 457cdce61d, and for the same reason.

However, instead of waiting and fixing them one by one as we see them fail, I
decided to go about it more systematically. To do that, I added calls to
`time.Sleep(1 * time.Second)` in all the Shell.Commit* helper functions; this
ensures that all the commits we make get different committer time stamps, making
all these tests fail. With this I'm pretty confident that we're good now.

pkg/integration/tests/commit/checkout.go

@@ -9,7 +9,9 @@ var Checkout = NewIntegrationTest(NewIntegrationTestArgs{
 	Description:  "Checkout a commit as a detached head, or checkout an existing branch at a commit",
 	ExtraCmdArgs: []string{},
 	Skip:         false,
-	SetupConfig:  func(config *config.AppConfig) {},
+	SetupConfig: func(config *config.AppConfig) {
+		config.GetUserConfig().Git.LocalBranchSortOrder = "alphabetical"
+	},
 	SetupRepo: func(shell *Shell) {
 		shell.EmptyCommit("one")
 		shell.EmptyCommit("two")

pkg/integration/tests/custom_commands/suggestions_command.go

@@ -37,6 +37,8 @@ var SuggestionsCommand = NewIntegrationTest(NewIntegrationTestArgs{
 				},
 			},
 		}
+
+		cfg.GetUserConfig().Git.LocalBranchSortOrder = "alphabetical"
 	},
 	Run: func(t *TestDriver, keys config.KeybindingConfig) {
 		t.Views().Branches().

pkg/integration/tests/custom_commands/suggestions_preset.go

@@ -37,6 +37,8 @@ var SuggestionsPreset = NewIntegrationTest(NewIntegrationTestArgs{
 				},
 			},
 		}
+
+		cfg.GetUserConfig().Git.LocalBranchSortOrder = "alphabetical"
 	},
 	Run: func(t *TestDriver, keys config.KeybindingConfig) {
 		t.Views().Branches().

pkg/integration/tests/filter_and_search/nested_filter.go

@@ -9,7 +9,9 @@ var NestedFilter = NewIntegrationTest(NewIntegrationTestArgs{
 	Description:  "Filter in the several nested panels and verify the filters are preserved as you escape back to the surface",
 	ExtraCmdArgs: []string{},
 	Skip:         false,
-	SetupConfig:  func(config *config.AppConfig) {},
+	SetupConfig: func(config *config.AppConfig) {
+		config.GetUserConfig().Git.LocalBranchSortOrder = "alphabetical"
+	},
 	SetupRepo: func(shell *Shell) {
 		// need to create some branches, each with their own commits
 		shell.NewBranch("branch-gold")

pkg/integration/tests/sync/fetch_and_auto_forward_branches_all_branches.go

@@ -11,6 +11,7 @@ var FetchAndAutoForwardBranchesAllBranches = NewIntegrationTest(NewIntegrationTe
 	Skip:         false,
 	SetupConfig: func(config *config.AppConfig) {
 		config.GetUserConfig().Git.AutoForwardBranches = "allBranches"
+		config.GetUserConfig().Git.LocalBranchSortOrder = "alphabetical"
 	},
 	SetupRepo: func(shell *Shell) {
 		shell.CreateNCommits(3)

pkg/integration/tests/sync/fetch_and_auto_forward_branches_none.go

@@ -11,6 +11,7 @@ var FetchAndAutoForwardBranchesNone = NewIntegrationTest(NewIntegrationTestArgs{
 	Skip:         false,
 	SetupConfig: func(config *config.AppConfig) {
 		config.GetUserConfig().Git.AutoForwardBranches = "none"
+		config.GetUserConfig().Git.LocalBranchSortOrder = "alphabetical"
 	},
 	SetupRepo: func(shell *Shell) {
 		shell.CreateNCommits(3)

pkg/integration/tests/sync/fetch_and_auto_forward_branches_only_main_branches.go

@@ -11,6 +11,7 @@ var FetchAndAutoForwardBranchesOnlyMainBranches = NewIntegrationTest(NewIntegrat
 	Skip:         false,
 	SetupConfig: func(config *config.AppConfig) {
 		config.GetUserConfig().Git.AutoForwardBranches = "onlyMainBranches"
+		config.GetUserConfig().Git.LocalBranchSortOrder = "alphabetical"
 	},
 	SetupRepo: func(shell *Shell) {
 		shell.CreateNCommits(3)