update element-web to version 1.12.0

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/9a094440e02a699be5c57453a092a8baf569bdad?narHash=sha256-Vp9K5ol6h0J90jG7Rm4RWZsCB3x7v5VPx588TQ1dkfs%3D' (2025-09-14)
  → 'github:nixos/nixpkgs/3bcc93c5f7a4b30335d31f21e2f1281cba68c318?narHash=sha256-YWo57PL7mGZU7D4WeKFMiW4ex/O6ZolUS6UNBHTZfkI%3D' (2025-10-04)
• Updated input 'sops-nix':
    'github:Mic92/sops-nix/f77d4cfa075c3de66fc9976b80e0c4fc69e2c139?narHash=sha256-HYnwlbY6RE5xVd5rh0bYw77pnD8lOgbT4mlrfjgNZ0c%3D' (2025-09-16)
  → 'github:Mic92/sops-nix/6e5a38e08a2c31ae687504196a230ae00ea95133?narHash=sha256-UvzKi02LMFP74csFfwLPAZ0mrE7k6EiYaKecplyX9Qk%3D' (2025-10-05)

config/hosts/matrix/matrix-synapse.nix

@@ -41,6 +41,8 @@
       max_upload_size = "500M";
 
       admin_contact = "mailto:yuri+ccchh@nekover.se";
+
+      default_room_version = "12";
     };
 
     extraConfigFiles = [

config/hosts/public-web-static/virtualHosts/element.hamburg.ccc.de.nix

@@ -1,10 +1,10 @@
 { pkgs, ... }:
 
 let
-  elementWebVersion = "1.11.109";
+  elementWebVersion = "1.12.0";
   element-web = pkgs.fetchzip {
     url = "https://github.com/element-hq/element-web/releases/download/v${elementWebVersion}/element-v${elementWebVersion}.tar.gz";
-    sha256 = "sha256-eKPClYJxUhCJznI1+dv9w2h0CoSKgZsBZCsuM3KH5ag=";
+    sha256 = "sha256-2kXQFUhLYyEKuXYw+n94JGlTN2VJHRpjmu78u8gdaro=";
   };
   elementSecurityHeaders = ''
     # Configuration best practices

flake.lock

@@ -66,11 +66,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1757810152,
-        "narHash": "sha256-Vp9K5ol6h0J90jG7Rm4RWZsCB3x7v5VPx588TQ1dkfs=",
+        "lastModified": 1759580034,
+        "narHash": "sha256-YWo57PL7mGZU7D4WeKFMiW4ex/O6ZolUS6UNBHTZfkI=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "9a094440e02a699be5c57453a092a8baf569bdad",
+        "rev": "3bcc93c5f7a4b30335d31f21e2f1281cba68c318",
         "type": "github"
       },
       "original": {
@@ -95,11 +95,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1758007585,
-        "narHash": "sha256-HYnwlbY6RE5xVd5rh0bYw77pnD8lOgbT4mlrfjgNZ0c=",
+        "lastModified": 1759635238,
+        "narHash": "sha256-UvzKi02LMFP74csFfwLPAZ0mrE7k6EiYaKecplyX9Qk=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "f77d4cfa075c3de66fc9976b80e0c4fc69e2c139",
+        "rev": "6e5a38e08a2c31ae687504196a230ae00ea95133",
         "type": "github"
       },
       "original": {