[7.x] [Home] Elastic home page redesign (#70571)

[cqliu1]

Backports the following commits to 7.x:

• [Home] Elastic home page redesign ([Home] Elastic home page redesign #70571)

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: f10258e

Build metrics

@kbn/optimizer bundle module count

id	value	diff	baseline
home	215	+8	207

async chunks size

id	value	diff	baseline
advancedSettings	65.9KB	+414.0B	65.5KB
home	567.8KB	+57.3KB	510.5KB
indexLifecycleManagement	259.7KB	+1.0B	259.7KB
ml	8.2MB	+41.0B	8.2MB
observability	310.3KB	-1.0B	310.3KB
securitySolution	9.5MB	-1.0B	9.5MB
total		+57.7KB

page load bundle size

id	value	diff	baseline
advancedSettings	981.4KB	+716.0B	980.7KB
apm	40.6KB	+26.0B	40.6KB
canvas	1.3MB	+18.0B	1.3MB
console	30.4KB	+37.0B	30.4KB
core	1.2MB	+25.0B	1.2MB
dashboard	702.2KB	+1.0B	702.2KB
discover	229.3KB	+1.0B	229.3KB
enterpriseSearch	22.6KB	+861.0B	21.8KB
graph	15.8KB	+43.0B	15.7KB
home	26.6KB	+2.6KB	24.0KB
indexLifecycleManagement	229.8KB	+864.0B	229.0KB
infra	276.6KB	+24.0B	276.6KB
ingestManager	467.5KB	+831.0B	466.7KB
logstash	180.1KB	+1.0B	180.1KB
management	29.5KB	+9.0B	29.5KB
maps	296.2KB	+19.0B	296.2KB
ml	576.8KB	+738.0B	576.1KB
monitoring	298.2KB	+136.0B	298.1KB
observability	49.9KB	+968.0B	48.9KB
painlessLab	161.0KB	+5.0B	161.0KB
rollup	223.1KB	+1.0B	223.1KB
savedObjectsManagement	216.4KB	+10.0B	216.4KB
security	305.2KB	-14.0B	305.2KB
securitySolution	807.8KB	+13.0B	807.8KB
snapshotRestore	62.6KB	+854.0B	61.8KB
spaces	412.8KB	+1.0B	412.8KB
transform	25.3KB	+1.0B	25.3KB
uptime	25.1KB	+1.0B	25.0KB
visualize	41.3KB	+1.0B	41.3KB
watcher	28.8KB	-32.0B	28.9KB
total		+8.6KB

oss distributable file count

id	value	diff	baseline
total	28045	+1	28044

distributable file count

id	value	diff	baseline
total	54920	+1	54919

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream