Implement the remaining Choose buttons for the special node edit dialog.

Also:
- Fix text response node using wrong string for response matching
- Fix inability to change PC race during party creation
- Info string area in select trait dialog widened considerably

rsrc/strings/special-contexts.txt

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+Outdoors
+Town
+Combat
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+Entering town
+Leaving town
+Talking
+Using special item
+Town event timer triggered
+Scenario event timer triggered
+Special node timer triggered
+Killed a monster
+Entetred outdoor combat
+Fled outdoor encounter
+Won outdoor encounter
+Targetung spell
+Using space
+Seeing a monster for the first time
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+Looking
+In Boat
+On Horse