Replace profile picture

[abishekdevendran]

• [x] File picker
• [x] Image editor
• [x] Image compression
• [x] Mutation and user invalidation

[abishekdevendran]

Currently implemented using compressor.js, @aws-sdk/client-s3, @aws-sdk/s3-request-presigner, svelte-file-dropzone and svelte-easy-crop

Further enhancements to consider:

• [ ] Promisify status updates toasts
• [ ] Make UI elements match theme more coherently