[O11y][IIS] Revisit the color scheme in IIS dashboards panels

[rajvi-patel-22]

Description

In some of the IIS dashboard panels, the colors used in panels does not match with the panel title/ functionality.

For example, Service Uptime (Hours) from [Metrics][IIS] Webserver Overview dashboard is shown in Red. Hence, The colour scheme may need to be revisited.

Screenshot

[botelastic]

Hi! We just realized that we haven't looked into this issue in a while. We're sorry! We're labeling this issue as Stale to make it hit our filters and make sure we get back to it as soon as possible. In the meantime, it'd be extremely helpful if you could take a look at it as well and confirm its relevance. A simple comment with a nice emoji will be enough :+1. Thank you for your contribution!

[botelastic]

Hi! We just realized that we haven't looked into this issue in a while. We're sorry! We're labeling this issue as Stale to make it hit our filters and make sure we get back to it as soon as possible. In the meantime, it'd be extremely helpful if you could take a look at it as well and confirm its relevance. A simple comment with a nice emoji will be enough :+1. Thank you for your contribution!