Update flake.lock and disable Slack on all hosts

Refresh locked revisions and hashes for several inputs in flake.lock.
Disable Slack in Garand-Desktop, Garand-Laptop, and default hosts.

flake.lock

@@ -15,11 +15,11 @@
         "treefmt-nix": "treefmt-nix"
       },
       "locked": {
-        "lastModified": 1770000162,
-        "narHash": "sha256-imdu7ueh6PZcUG1+/H4+JJbaeAuO+v0BYJtVVlAeqjc=",
+        "lastModified": 1771538093,
+        "narHash": "sha256-PxHGpkpAHIQ+M4i+8KNXwEl9DYm2emm7W30I7qNdesE=",
         "owner": "mrshmllow",
         "repo": "affinity-nix",
-        "rev": "cfec6b8371038868748370ed38c59ec35e49b62e",
+        "rev": "1e6512bbe1669c88ca9ab34b24db290b06223c5b",
         "type": "github"
       },
       "original": {
@@ -145,11 +145,11 @@
       },
       "locked": {
         "dir": "pkgs/firefox-addons",
-        "lastModified": 1771301023,
-        "narHash": "sha256-0XauSmXBLOqn8SYHRWOL7Z9O7m5qtF0Yw6rqXVHkEnw=",
+        "lastModified": 1771732978,
+        "narHash": "sha256-o7gZh/eXFkEEmzwlBdIbgCJhmdlqQhOhVjudqgsIefg=",
         "owner": "rycee",
         "repo": "nur-expressions",
-        "rev": "1cf8b4f42720573ef35dcd7d2ba0fd80e40954e9",
+        "rev": "18226106e18bc40cce99d436ee741a946f1888f6",
         "type": "gitlab"
       },
       "original": {
@@ -349,11 +349,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1771269455,
-        "narHash": "sha256-BZ31eN5F99YH6vkc4AhzKGE+tJgJ52kl8f01K7wCs8w=",
+        "lastModified": 1771851181,
+        "narHash": "sha256-gFgE6mGUftwseV3DUENMb0k0EiHd739lZexPo5O/sdQ=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "5f1d42a97b19803041434f66681d5c44c9ae62e3",
+        "rev": "9a4b494b1aa1b93d8edf167f46dc8e0c0011280c",
         "type": "github"
       },
       "original": {
@@ -422,11 +422,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1771008912,
-        "narHash": "sha256-gf2AmWVTs8lEq7z/3ZAsgnZDhWIckkb+ZnAo5RzSxJg=",
+        "lastModified": 1771369470,
+        "narHash": "sha256-0NBlEBKkN3lufyvFegY4TYv5mCNHbi5OmBDrzihbBMQ=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "a82ccc39b39b621151d6732718e3e250109076fa",
+        "rev": "0182a361324364ae3f436a63005877674cf45efb",
         "type": "github"
       },
       "original": {
@@ -474,11 +474,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1771364394,
-        "narHash": "sha256-83yN5tLQESHPEkF1SBi2aOdCBTmUVN0o6INsEGRV5O4=",
+        "lastModified": 1771872869,
+        "narHash": "sha256-evn+p0+T9yNtjdRr5UnYwXnhlHgFB8ilzhGQoYvgXhs=",
         "owner": "noctalia-dev",
         "repo": "noctalia-shell",
-        "rev": "96f4168db76c37c199634eb4b7ae56211fda3d50",
+        "rev": "90e44d6edd604a0877310b01ff20006abcf67e77",
         "type": "github"
       },
       "original": {
@@ -547,11 +547,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1768437816,
-        "narHash": "sha256-GG+V2g5NfVrypTs8qbtGnUWTXTMkGtohy/uIDa5duI0=",
+        "lastModified": 1771797779,
+        "narHash": "sha256-VjN8CBG3KLaqP7yFYWvLQuCwivh4RBjzWkWlMlxYjdI=",
         "owner": "Diegiwg",
         "repo": "PrismLauncher-Cracked",
-        "rev": "e8418b74059bdbe4fcc97522b25dc17373b0cc21",
+        "rev": "356e6d7edc4a1b8b28d1a9a04057a2a3ea8655e4",
         "type": "github"
       },
       "original": {
@@ -611,11 +611,11 @@
         "tinted-zed": "tinted-zed"
       },
       "locked": {
-        "lastModified": 1771330061,
-        "narHash": "sha256-qBWXy3mSOEYjvZB/RZHT0joVPhNWU8GQZQljLzyMTq0=",
+        "lastModified": 1771787992,
+        "narHash": "sha256-Vg4bGwwenNYI8p3nJTl9FRyeIyrjATeZrZr+GyUSDrw=",
         "owner": "danth",
         "repo": "stylix",
-        "rev": "fa45bf2d70517a8643a0edb44b02b8e6c0453d06",
+        "rev": "30054cca073b49b42a71289edec858f535b27fe9",
         "type": "github"
       },
       "original": {