fix: adapt next parameter with an accepted route by OGS login

src/components/AppHeader.vue

@@ -284,8 +284,9 @@ export default {
       return this.configuration.VUE_APP_DISABLE_LOGIN_BUTTON;
     },
     SSO_LOGIN_URL() {
-      if (this.configuration.VUE_APP_LOGIN_URL) {
-        return `${this.configuration.VUE_APP_LOGIN_URL}/?next=${encodeURIComponent(window.location.href)}`;
+      if (this.configuration.VUE_APP_LOGIN_URL) { 
+        // add a next parameter with an accepted route by OGS to redirect after login 
+        return `${this.configuration.VUE_APP_LOGIN_URL}/?next=%2Fgeocontrib%2F`;
       }
       return null;
     },