Added user profile in /profile

FullstackProsjekt/src/frontend/src/components/icons/default-avatar.svg

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+<!-- Uploaded to: SVG Repo, www.svgrepo.com, Transformed by: SVG Repo Mixer Tools -->
+<svg width="800px" height="800px" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g id="SVGRepo_bgCarrier" stroke-width="0"/>
+<g id="SVGRepo_tracerCarrier" stroke-linecap="round" stroke-linejoin="round"/>
+<g id="SVGRepo_iconCarrier"> <circle cx="12" cy="6" r="4" fill="#242F40"/> <path d="M20 17.5C20 19.9853 20 22 12 22C4 22 4 19.9853 4 17.5C4 15.0147 7.58172 13 12 13C16.4183 13 20 15.0147 20 17.5Z" fill="#242F40"/> </g>
+</svg>
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