vale: scope log in/out swap to verb forms only

The login/logout swap was firing on noun usages like "sbx login",
"login shell", and "device flow login" — none of which mean "sign in".
Restrict the pattern to verb phrases ("log in", "log on", "sign on",
"log out") so noun forms are left alone.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: dvdksn

_vale/Docker/RecommendedWords.yml

@@ -10,8 +10,8 @@ swap:
   '\b(?:ie|i\.e\.)[\s,]': that is
   (?:account name|accountname|user name): username
   (?:drop down|dropdown): drop-down
-  (?:log out|logout): sign out
-  (?:sign on|log on|log in|logon|login): sign in
+  \blog out\b: sign out
+  \b(?:sign on|log on|log in)\b: sign in
   above: previous
   adaptor: adapter
   administrate: administer