Upgrade observable-store to version 2.2.15

package.json

@@ -64,7 +64,7 @@
     "@angular/platform-browser-dynamic": "14.2.0",
     "@angular/router": "14.2.0",
     "@angular/service-worker": "14.2.0",
-    "@codewithdan/observable-store": "2.2.11",
+    "@codewithdan/observable-store": "2.2.15",
     "@dfinity/agent": "0.12.1",
     "@dfinity/auth-client": "0.12.1",
     "@dfinity/authentication": "0.12.1",

yarn.lock

@@ -2398,10 +2398,10 @@
     exec-sh "^0.3.2"
     minimist "^1.2.0"
 
-"@codewithdan/observable-store@2.2.11":
+"@codewithdan/observable-store@2.2.15":
-  version "2.2.11"
+  version "2.2.15"
-  resolved "https://registry.npmjs.org/@codewithdan/observable-store/-/observable-store-2.2.11.tgz"
+  resolved "https://registry.yarnpkg.com/@codewithdan/observable-store/-/observable-store-2.2.15.tgz#6d27e0988e182853def59a714b712f4389e558d2"
-  integrity sha512-6CfqLJUqV0SwS4yE+9vciqxHUJ6CqIptSXXzFw80MonCDoVJvCJ/xhKfs7VZqJ4jDtEu/7ILvovFtZdLg9fiAg==
+  integrity sha512-LVCSMZzTCvoDo5n7YDmtIIEhTmvJ8O21k36Vwu/A4kumdXQ1YVs4sKoSK3vlINZPL4AYY2MRsBVtvre4QIETFw==
 
 "@colors/colors@1.5.0":
   version "1.5.0"