Add a breaking changes entry for using shell aliases

pkg/i18n/english.go

@@ -2082,6 +2082,7 @@ gui:
 	  `,
 			"0.44.0": `- The gui.branchColors config option is deprecated; it will be removed in a future version. Please use gui.branchColorPatterns instead.
 - The automatic coloring of branches starting with "feature/", "bugfix/", or "hotfix/" has been removed; if you want this, it's easy to set up using the new gui.branchColorPatterns option.`,
+			"0.49.0": `- Executing shell commands (with the ':' prompt) no longer uses an interactive shell, which means that if you want to use your shell aliases in this prompt, you need to do a little bit of setup work. See https://github.com/jesseduffield/lazygit/blob/master/docs/Config.md#using-aliases-or-functions-in-shell-commands for details.`,
 		},
 	}
 }