Two coupled defects made shape.applyToken(), token.applyToShapes() and
token.applyToSelected() silently no-op when invoked from JavaScript with
an array of strings (e.g. token.applyToShapes([rect], ["fill"])):
1. token-attr-plugin->token-attr only consulted its alias map when the
input was already a keyword; string inputs fell through unchanged,
causing downstream token-attr? to return false.
2. The inner schemas used plain [:set ...] which lacks the :decode/json
transformer for JS array -> Clojure set coercion. Switching to
Penpot's custom [::sm/set ...] lets the standard JSON decoder
pipeline handle the conversion automatically.
This is a backport of commit 1eac3e2be5f973359ad2ec9bac4e80a9d5a9e022
which fixes GitHub #9162.
Signed-off-by: Andrey Antukh <niwi@niwi.nz>
