news: add anvil-editor entry

modules/misc/news/2025/10/2025-10-11_17-56-35.nix

@@ -0,0 +1,12 @@
+{
+  time = "2025-10-11T20:56:35+00:00";
+  condition = true;
+  message = ''
+    A new module is available: `programs.anvil-editor`
+
+    Anvil is a graphical, multi-pane tiling editor that makes bold use
+    of the mouse and integrates closely with the shell. It supports syntax
+    highlighting, multiple cursors and selections, remote file editing, and
+    contains a powerful text manipulation language.
+  '';
+}