Added exa config

Updated lockfile to use an updated version of the exa module in
home-manager.

flake.lock

@@ -57,11 +57,11 @@
         "utils": "utils"
       },
       "locked": {
-        "lastModified": 1675935446,
-        "narHash": "sha256-WajulTn7QdwC7QuXRBavrANuIXE5z+08EdxdRw1qsNs=",
+        "lastModified": 1679067095,
+        "narHash": "sha256-G2dJQURL/CCi+8RP6jNJG8VqgtzEMCA+6mNodd3VR6E=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "2dce7f1a55e785a22d61668516df62899278c9e4",
+        "rev": "3239e0b40f242f47bf6c0c37b2fd35ab3e76e370",
         "type": "github"
       },
       "original": {
@@ -94,11 +94,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1677928408,
-        "narHash": "sha256-Rus3DPKieGuG4UHdMCCFpKdH8Z2TrobciBLHr4FDAzM=",
+        "lastModified": 1678351966,
+        "narHash": "sha256-tRFEU0lu3imZb3dtELBY+UbEhWXbb0xlBrsIlpICb+A=",
         "owner": "nix-community",
         "repo": "nixos-generators",
-        "rev": "46158ecda28c81b9150f75c8bce8821d375c1230",
+        "rev": "0c043999b16caba6fb571af2d228775729829943",
         "type": "github"
       },
       "original": {
@@ -109,11 +109,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1676202775,
-        "narHash": "sha256-gV/RnfVZkGLHn+5rmX2GSh5aquVHpWOJw1cnpEV03tQ=",
+        "lastModified": 1679081381,
+        "narHash": "sha256-n4+SbrVohxbgbmOTkodfxc3d8W38OfKowD6YNA8j27o=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d917136f550a8c36efb1724390c7245105f79023",
+        "rev": "b573a7f69484a7d213680abb70b4f95bdc28eee5",
         "type": "github"
       },
       "original": {
@@ -155,11 +155,11 @@
     },
     "utils": {
       "locked": {
-        "lastModified": 1667395993,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "lastModified": 1676283394,
+        "narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
         "type": "github"
       },
       "original": {