[Discover] Improve empty message

[kertal]

The empty message only mentions time, but you can get into a situation where the table is empty because of the filters you've applied. It'd be great to update this message to be more generic or include a mention of filters, or better yet, KNOW it's because of filter. https://share.getcloudapp.com/DOuombBx

Originally posted by @cchaos in #67259 (comment)

100% Yes, and on top of that, this message could also tell you, when the time filter doesn't fine documents where the previous/ next documents are time wise ... and provide a button to extend the range maybe

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)