API calls improved

[jesusgn90]

Brief summary:

• Removed this.commonData.getPCI(), this.commonData.getGDPR() from $onInit method. Now they are used only in the proper tab.
• Loading syscollector data only once we are in the Agent > Inventory tab because are heavy calls and they are useless in a welcome screen.
• Using is_sync only when we are on the configuration tab.
• Method this.$scope.switchTab is now async.
• Removed Total rules and Total decoders metrics from Management > Status due to perfomance reasons.
• Replaced the Elasticsearch wrapper method at https://github.com/wazuh/wazuh-kibana-app/blob/c7cbbbed8cc2876bf8c4fbbf29fedbfe5be36a7a/server/lib/elastic-wrapper.js#L591 in order to work properly when using X-Pack security features. This must be fixed as soon as possible because it's now working but it doesn't take care about the X-Pack role being applied.