fix(awards): the RDA arbitration writes CNTY, and settled rows leave the list

Two faults, and the first was a design mistake of mine.

The choice was written only as the award override, to keep the imported
CNTY as a record of what HAMLOG said. But CNTY is what the comparison
READS, so the contact went on disagreeing for ever: settle a hundred
rows, run the comparison again, get the same hundred back. The reasoning
was about preserving evidence; the effect was a button with no visible
consequence anywhere, which is indistinguishable from one that does
nothing. This is the operator's own log, and correcting a field in it is
the point of the exercise. The district now lands in CNTY as well as in
the award reference.

And the settled rows stayed on screen, which made the same button look
broken a second time. They are dropped as they are applied — locally,
rather than by re-running the comparison, which reads the whole log and
would be seconds of silence on a remote database to be told what is
already known. The agree/disagree counters follow.

changelog.json

@@ -3,11 +3,11 @@
     "version": "0.26.17",
     "date": "",
     "en": [
-      "Awards, RDA district comparison: each disagreement can now be settled on its own row. Click the district you keep — the log's or the database's — and apply. The choice becomes the contact's award reference, so it is what counts, while both sources keep saying what they said.",
+      "Awards, RDA district comparison: each disagreement can now be settled on its own row. Click the district you keep — the log's or the database's — and apply. It is written into the contact's CNTY and its award reference, and the settled rows leave the list.",
       "The band/mode matrix: a confirmed slot now shows as confirmed. A callsign worked and not confirmed was outranking an entity CONFIRMED on the same band and mode, so a slot that needs nothing was painted as if it still did."
     ],
     "fr": [
-      "Diplômes, comparaison des districts RDA : chaque divergence se règle désormais sur sa propre ligne. Cliquer le district qu'on garde — celui du log ou celui de la base — puis appliquer. Le choix devient la référence de diplôme du contact, donc c'est lui qui compte, tandis que les deux sources continuent de dire ce qu'elles disaient.",
+      "Diplômes, comparaison des districts RDA : chaque divergence se règle désormais sur sa propre ligne. Cliquer le district qu'on garde — celui du log ou celui de la base — puis appliquer. Il est écrit dans le CNTY du contact et dans sa référence de diplôme, et les lignes réglées quittent la liste.",
       "Matrice bandes/modes : une case confirmée s'affiche enfin comme confirmée. Un indicatif travaillé et non confirmé l'emportait sur une entité CONFIRMÉE sur la même bande et le même mode, si bien qu'une case qui ne demandait plus rien était peinte comme s'il manquait encore quelque chose."
     ]
   },