Tweak getRelease callback

Simplify the JS processing.

src/gui/html/js/initialise.js

@@ -117,16 +117,8 @@
     document.addEventListener('loot-game-plugins-change', Game.onPluginsChange);
   }
 
-  function splitVersion(version) {
-    const lastPeriodIndex = version.lastIndexOf('.');
-    return {
-      release: version.substring(0, lastPeriodIndex),
-      build: version.substring(lastPeriodIndex + 1),
-    };
-  }
-
   function setVersion(appData) {
-    return query('getVersion').then(JSON.parse).then(splitVersion).then((version) => {
+    return query('getVersion').then(JSON.parse).then((version) => {
       appData.version = version.release;
       dom.setVersion(version);
     });

src/gui/query/get_version_query.h

@@ -27,13 +27,17 @@ along with LOOT.  If not, see
 
 #include "gui/query/query.h"
 #include "loot/loot_version.h"
+#include "backend/helpers/json.h"
 
 namespace loot {
 class GetVersionQuery : public Query {
 public:
   std::string executeLogic() {
     BOOST_LOG_TRIVIAL(info) << "Getting LOOT version.";
-    return "\"" + LootVersion::string() + "." + LootVersion::revision + "\"";
+    YAML::Node node;
+    node["release"] = LootVersion::string();
+    node["build"] = LootVersion::revision;
+    return JSON::stringify(node);
   }
 };
 }