Closes gh-16688

See gh-16688

* pr/15988:
  Polish "Allow configuration of auto-timed metrics"
  Allow configuration of auto-timed metrics

Closes gh-15988

When `management.metrics.web.server.auto-time-requests` is enabled
(default=true), Spring Boot collects metrics on controller methods even
when they are not annotated with `@Timed`.

When this happens, created metrics are based on the default
`@Timed` configuration and there is no way to customize the
configuration of those auto-timed controller metrics.

This commit adds default configurations to auto-timed requests on both
client and server sides.

See gh-15988

This should fix the NoClassDefFound errors after moving to Framework
snapshots

This commit also documents `ContextRefreshedEvent` and
`WebServerInitializedEvent`.

Closes gh-7382

Closes gh-16661

* pr/16622:
  Polish "Document use of @Profile with @ConfigurationProperties scanning"
  Document use of @Profile with @ConfigurationProperties scanning

Closes gh-16622

See gh-16612

* appendix-properties-styling:
  Polish "Separate compound properties in appendices"
  Separate compound properties in appendices

Closes gh-16480

* pr/16604:
  Polish "Auto-configure ReactiveStringRedisTemplate if necessary"
  Auto-configure ReactiveStringRedisTemplate if necessary

Closes gh-16604

See gh-16604

* pr/16628:
  Exclude HikariCP specific dependency from Quartz

Closes gh-16628

* pr/16668:
  Remove redundant info

Closes gh-16668

* pr/16678:
  Polish "Add jOOQ to SQL logging group"
  Add jOOQ to SQL logging group

Closes gh-16678

See gh-16678

* pr/16684:
  Fix typo

Closes gh-16684

* pr/16685:
  Polish

Closes gh-16685

Closes gh-16679

* gh-16248:
  Polish "Prefer file: to jar:file: URLs in launcher"
  Prefer file: to jar:file: URLs in launcher

Closes gh-16248

See gh-16248

See gh-16248

* pr/16632:
  Polish "Add support for Hazelcast YAML configuration"
  Add support for Hazelcast YAML configuration

Closes gh-16632

Since Hazlecast 3.12, YAML configuration format is supported in
addition to XML. Therefore, this change makes Spring Boot automatically
discover not only `hazelcast.xml` (and `hazelcast-client.xml`), but also
`hazelcast.yaml` (and `hazelcast-client.yaml`).

See gh-16632

This commit reinstates the single-page variant for the Spring Boot
reference documentation.

Now the single and multi-page variants are hosted under the same
`"html"` folder, as `"index.html"` and `"single-index.html"`.
Note that files ending in `"index.html`" are treated as index files by
the spring-doc-resources project and their table of contents do not
display a "Back to index" link.

Fixes gh-16295