Move a rule several places in one change

The Rules page has a Move… button that puts a rule before any other of
its chain, or at the end, in one move. Staged in a changeset, a move
right after a move of the same object takes its place, so pressing ↑
three times is one operation; moving it back where it was takes the
operation out.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -124,6 +124,11 @@ All notable changes to Housecarl are documented here. The format follows
 
 ### Changed
 
+- Moving a rule several places is one change. The Rules page has a
+  **Move…** button that puts a rule before any other of its chain (or at
+  the end) at once, and in a changeset a move right after a move of the
+  same rule takes its place, so ↑ three times stages one operation (and
+  moving it back where it was takes the operation out).
 - Statistics' "Busiest rules" (the Statistics page, `hc stats`,
   `GET /stats/summary`) lists only rules and NAT objects. Built-ins and
   policies have their own list ("Built-ins and policies", `builtins` in