Update Service Mesh Icon with Pattern's icon

[Muhu-Muza]

Description

This PR fixes #1744
Notes for Reviewers

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[vishalvivekm]

@Muhu-Muza What are these changes for ? can you please explain?
We just need to update the svg icon.

[vishalvivekm]

More over the service mesh Icon is still not updated with Pattern's icon ( mentioned in the issue )

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[vishalvivekm]

@Muhu-Muza Let's discuss this on Websites's call on Monday. I've added this as an agenda item into the meeting minutes.

[leecalcote]

Thanks, @Muhu-Muza!

@iArchitSharma, when you have a moment, will you offer feedback / review?

[Muhu-Muza]

@vishalvivekm , I only updated the service mesh Icon with the pattern's icon.
I used the patterns svg that you provided earlier.