git: Enable fsmonitor and rerere

For fsmonitor, see https://git-scm.com/docs/git-config#Documentation/git-config.txt-corefsmonitor
For rerere, see https://git-scm.com/book/en/v2/Git-Tools-Rerere

home-manager/modules/git/default.nix

@@ -109,6 +109,7 @@ in
         core = {
           editor = "${config.eboskma.programs.emacs.package}/bin/emacsclient";
           pager = "${pkgs.bat}/bin/bat";
+          fsmonitor = true;
         };
         merge = {
           ff = "only";
@@ -124,6 +125,7 @@ in
         rebase = {
           autoStash = true;
         };
+        rerere.enabled = true;
         color = {
           ui = "auto";
           status = {