feat(appearance): four QSL categories, each scoped to chosen channels

Replaces the four fixed rules with the model Logger32 uses and the operator
asked for: Worked / Confirmed / QSL sent / To be sent, and inside each, which
channels count — paper QSL, LoTW, eQSL, QRZ.com. No ticks means every channel,
because a rule the operator has not narrowed must not quietly become a rule
about nothing.

"To be sent" is FIRST in the order, and that is the substantive decision here.
A contact can be confirmed on LoTW and still owe a paper card; the colour an
operator scans for is the one meaning "something is still owed". Placed after
"confirmed" that row goes green and the card never gets printed.

"Worked" is the catch-all — nothing sent, nothing requested, nothing back — and
is off by default, since turning it on paints every remaining row.

R and Q both count as owed: ADIF says requested and queued, and both mean the
card has not gone out.

changelog.json

@@ -8,7 +8,8 @@
       "Band map: stations that upload to LoTW now carry the same L badge as the cluster list, switchable in Appearance.",
       "LoTW: contacts TQSL leaves out — already uploaded, or outside the certificate date range — are no longer reported as uploaded.",
       "FT8: a contact is logged with the grid the station actually sent, not the home square from QRZ — expeditions were logged in the wrong place.",
-      "SPE amplifier: switching it off is shown at once, instead of needing a second press of OFF."
+      "SPE amplifier: switching it off is shown at once, instead of needing a second press of OFF.",
+      "Appearance: row colouring is now Worked / Confirmed / QSL sent / To be sent, each scoped to the channels you pick — paper, LoTW, eQSL, QRZ.com."
     ],
     "fr": [
       "Apparence : la coloration des lignes se fait par défaut sur une barre à gauche, la ligne remplie et son intensité restant proposées.",
@@ -16,7 +17,8 @@
       "Band map : les stations qui utilisent LoTW portent le même badge L que la liste du cluster, activable dans Apparence.",
       "LoTW : les contacts que TQSL écarte — déjà envoyés, ou hors de la plage de dates du certificat — ne sont plus annoncés comme envoyés.",
       "FT8 : un contact est enregistré avec le locator réellement émis par la station, et non le carré du domicile depuis QRZ — les expéditions étaient logguées au mauvais endroit.",
-      "Amplificateur SPE : l extinction s affiche immédiatement, au lieu de demander un second appui sur OFF."
+      "Amplificateur SPE : l extinction s affiche immédiatement, au lieu de demander un second appui sur OFF.",
+      "Apparence : la coloration des lignes devient Contacté / Confirmé / QSL envoyée / À envoyer, chacune limitée aux canaux choisis — papier, LoTW, eQSL, QRZ.com."
     ]
   },
   {