flake.lock: Update

Flake lock file updates:

• Updated input 'hyprland':
    'github:hyprwm/hyprland/06cc42441cd5b24444f7c79495851dedde8bc732' (2023-10-11)
  → 'github:hyprwm/hyprland/e4bcd2e2da3136fb55886c4f02dd4a01099e687b' (2023-10-12)

flake.lock

@@ -122,26 +122,6 @@
         "url": "https://flakehub.com/f/DeterminateSystems/flake-schemas/0.1.1.tar.gz"
       }
     },
-    "grub2-themes": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1694949342,
-        "narHash": "sha256-KYwOOYAWsFNM5EGdauew5HOVj9HdWWGcjGy7mLX+V6w=",
-        "owner": "vinceliuice",
-        "repo": "grub2-themes",
-        "rev": "000171da277b8d0219f90782708d42c700081a44",
-        "type": "github"
-      },
-      "original": {
-        "owner": "vinceliuice",
-        "repo": "grub2-themes",
-        "type": "github"
-      }
-    },
     "gruvbox-kvantum": {
       "flake": false,
       "locked": {
@@ -224,11 +204,11 @@
         "xdph": "xdph"
       },
       "locked": {
-        "lastModified": 1697059673,
-        "narHash": "sha256-9dIM1ei+O6zcFFM0pgmBhbHv83tli2y8ikjKb1phouc=",
+        "lastModified": 1697127995,
+        "narHash": "sha256-da9pd4ZTs4JzSgjj0sriX3e97vsZ9LcP3ciZq4An2EY=",
         "owner": "hyprwm",
         "repo": "hyprland",
-        "rev": "06cc42441cd5b24444f7c79495851dedde8bc732",
+        "rev": "e4bcd2e2da3136fb55886c4f02dd4a01099e687b",
         "type": "github"
       },
       "original": {
@@ -414,7 +394,6 @@
         "chaotic-nyx": "chaotic-nyx",
         "fish-plugin-bobthefish": "fish-plugin-bobthefish",
         "fish-plugin-gruvbox-theme": "fish-plugin-gruvbox-theme",
-        "grub2-themes": "grub2-themes",
         "gruvbox-kvantum": "gruvbox-kvantum",
         "gruvbox-plus-icon-pack": "gruvbox-plus-icon-pack",
         "home-manager": "home-manager_2",