fix: Yaml content is not matched with the monitoring template type

Created by: weili520

Signed-off-by: TheYoungManLi cjl@kubesphere.io

What type of PR is this?

/kind bug

What this PR does / why we need it:

the YAML content is not matched with the monitoring template type after creating a dashboard.

Which issue(s) this PR fixes:

Fixes ##2848 (closed)

Special notes for reviewers:

No UI problem

Does this PR introduced a user-facing change?

Yaml content is not matched with the monitoring template type after creating a dashboard.

Additional documentation, usage docs, etc.:

This problem is caused by the template.json being referenced by the page data, its 'settings. title' field will be overridden with the monitoring template type.