fix: Use the remote icon for dynamic wikipedia

[ncloudioj]

References

JIRA: DISCO-3196

Description

Now that there is Merino hosted Wikipedia icon, let's use that to replace the hardcoded one.

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[ncloudioj]

cc: @gruberb @Herraj. I left a TODO there so that we can dynamically provide the icon URL instead of hardcoding it in the source.