Update Spring Boot Logging Doc

[dingsdax]

https://docs.sentry.io/platforms/java/guides/spring-boot/logging-frameworks/

update documentation to move enable logs up and place at the beginning, we wanna encourage people to only use the integration with enabled logs.

add a banner adjusted for Java like the one in JS: https://docs.sentry.io/platforms/javascript/guides/node/configuration/integrations/console/ CTA-ing customers to enable logs

[linear]

JAVA-234