feat: Support multiple commit prefixes

This implementation, unlike that proposed in https://github.com/jesseduffield/lazygit/pull/4253
keeps the yaml schema easy, and does a migration from the single
elements to a sequence of elements.

pkg/integration/tests/commit/commit_with_fallthrough_prefix.go

@@ -0,0 +1,53 @@
+package commit
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/config"
+	. "github.com/jesseduffield/lazygit/pkg/integration/components"
+)
+
+var CommitWithFallthroughPrefix = NewIntegrationTest(NewIntegrationTestArgs{
+	Description:  "Commit with multiple CommitPrefixConfig",
+	ExtraCmdArgs: []string{},
+	Skip:         false,
+	SetupConfig: func(cfg *config.AppConfig) {
+		cfg.GetUserConfig().Git.CommitPrefix = []config.CommitPrefixConfig{
+			{Pattern: "^doesntmatch-(\\w+).*", Replace: "[BAD $1]: "},
+			{Pattern: "^\\w+\\/(\\w+-\\w+).*", Replace: "[GOOD $1]: "},
+		}
+		cfg.GetUserConfig().Git.CommitPrefixes = map[string][]config.CommitPrefixConfig{
+			"DifferentProject": {{Pattern: "^otherthatdoesn'tmatch-(\\w+).*", Replace: "[BAD $1]: "}},
+		}
+	},
+	SetupRepo: func(shell *Shell) {
+		shell.NewBranch("feature/TEST-001")
+		shell.CreateFile("test-commit-prefix", "This is foo bar")
+	},
+	Run: func(t *TestDriver, keys config.KeybindingConfig) {
+		t.Views().Commits().
+			IsEmpty()
+
+		t.Views().Files().
+			IsFocused().
+			PressPrimaryAction().
+			Press(keys.Files.CommitChanges)
+
+		t.ExpectPopup().CommitMessagePanel().
+			Title(Equals("Commit summary")).
+			InitialText(Equals("[GOOD TEST-001]: ")).
+			Type("my commit message").
+			Cancel()
+
+		t.Views().Files().
+			IsFocused().
+			Press(keys.Files.CommitChanges)
+
+		t.ExpectPopup().CommitMessagePanel().
+			Title(Equals("Commit summary")).
+			InitialText(Equals("[GOOD TEST-001]: my commit message")).
+			Type(". Added something else").
+			Confirm()
+
+		t.Views().Commits().Focus()
+		t.Views().Main().Content(Contains("[GOOD TEST-001]: my commit message. Added something else"))
+	},
+})