♻️ Use target as the source for dynamic text

This is a very minor change to make it easier to pull the mod
application out into another function. I've done it a separate commit to
make it easier to see and because the comment just above this line makes
me a little leery that it's intentional that this takes copyTo instead
of target - but looking at the code I can't see any reason that would
actually make a difference.

src/main/java/dev/ebullient/convert/tools/dnd5e/Tools5eJsonSourceCopier.java

@@ -263,8 +263,8 @@ protected JsonNode mergeNodes(Tools5eIndexType type, String originKey, JsonNode
             // pre-convert any dynamic text
             JsonNode copyMetaMod = MetaFields._mod.getFrom(_copy);
             for (Entry<String, JsonNode> entry : iterableFields(copyMetaMod)) {
-                // use the copyTo value as the attribute source for resolving dynamic text
-                entry.setValue(resolveDynamicText(originKey, entry.getValue(), copyTo));
+                // use the target value as the attribute source for resolving dynamic text
+                entry.setValue(resolveDynamicText(originKey, entry.getValue(), target));
             }
 
             // Now iterate and apply mod rules