feature: the key of a credential store may be a path of keys, so stores of several kinds share one object of config.json.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@koszewscy/sk-react-toolkit",
-  "version": "0.2.1",
+  "version": "0.3.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@koszewscy/sk-react-toolkit",
-      "version": "0.2.1",
+      "version": "0.3.0",
       "devDependencies": {
         "@emotion/react": "^11.14.0",
         "@emotion/styled": "^11.14.1",