Migrate gwas-ui from old Spring 1.4.1 to Spring 2.7.15

[sprintell]

This is the highest version of Spring boot migration that will not require changing the underlyign jdk to JDK 17

THis is Linked to the ticket

[sprintell]

Still in progress, thymeleaf errors, at the moment. SHould be concluded inthis new sprint

[sprintell]

Waiting to be deployed, should be deployed before end of sprint

[sprintell]

Ready for releas @sprintell

[sprintell]

This has been merged to dev, will be released to gwas-snoopy later today, for more Ui check and testing

[sprintell]

This can only be deployed after the entire Tomcat in production is upgraded.