maintainers: Add loveisgrief

maintainers/maintainer-list.nix

···
     githubId = 4969294;
     name = "Louis Tim Larsen";
   };
+  loveisgrief = {
+    name = "LoveIsGrief";
+    email = "[e-mail]";
+    keys = [{
+      fingerprint = "9847 4F48 18C6 4E0A F0C5  3529 E96D 1EDF A053 45EB";
+    }];
+  };
   lovek323 = {
     email = "[e-mail]";
     github = "lovek323";