Add loading indicator and empty result message to advanced interface … #1

Job	Run time
build (production)	2m 56s
build (test)	2m 48s
test (3.1)	7m 42s
End to End testing (3.1)	4m 35s
test (3.2)	7m 40s
End to End testing (3.2)	4m 4s
Elastic Search integration testing (3.1, docker.elastic.co/elasticsearch/elasticsearch:7.17.13)	3m 15s
test (.ruby-version)	8m 24s
End to End testing (.ruby-version)	3m 13s
Elastic Search integration testing (3.2, docker.elastic.co/elasticsearch/elasticsearch:7.17.13)	3m 2s
Elastic Search integration testing (.ruby-version, docker.elastic.co/elasticsearch/elasticsearch:...	2m 4s
Elastic Search integration testing (.ruby-version, docker.elastic.co/elasticsearch/elasticsearch:...	2m 9s
	51m 52s

Provide feedback