feat: Added last_name field

[benjackwhite]

Problem

Changes

• Returns the last_name property - useful for anywhere that we want to make it clearer about the person (such as Members areas)
• Updates the "ProfilePicture" component to take simply a user object which then takes care of generating the right name with email etc.

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[github-actions]

Size Change: +2.06 kB (0%)

Total Size: 2 MB

Filename	Size	Change
frontend/dist/toolbar.js	2 MB	+2.06 kB (0%)

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📸 UI snapshots have been updated

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• webkit: 0 added, 0 modified, 0 deleted

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