Move find-token-references to token namespace

frontend/src/app/main/ui/workspace/tokens/token.cljs

@@ -4,6 +4,13 @@
    [clojure.set :as set]
    [cuerdas.core :as str]))
 
+(defn find-token-references
+  "Finds token reference values in `value-string` and returns a set with all contained namespaces."
+  [value-string]
+  (some->> (re-seq #"\{([^}]*)\}" value-string)
+           (map second)
+           (into #{})))
+
 (defn token-identifier [{:keys [name] :as _token}]
   name)