Updated profile page and addes shimmer effect

[nenadV91]

Summary

• shows balance cards by default
• shows shimmer effect on loading and when the convert is pending
• fixes issue with missing images in activity modal

[github-actions]

• 🔭 GP Swap: CoW Protocol v2 Swap UI

[fairlighteth]

@nenadV91 Looks good! Tested:

• Converting vCOW to COW -> Shows nice shimmer effect and - for the vested balance (while in progress). Also nice that it shimmers while loading the balance (on page load)!
• Once I had COW balance, I sent out my full COW balance to another account. This resulted in 0 COW balance and was updated without requiring a page refresh. Also the 0 COW balance card remains visible at all times.

One tiny issue I spotted is that the vCOW token image seems wrong. This is outside this PR as I think there might be an issue somewhere:

[fairlighteth]

Approving with the minor note about the vCOW token image seemingly being incorrect.

[elena-zh]

Looks good to me.
In addition to @fairlighteth comment I'd add that it would be nice to show zeros in the balance tooltip to a not connected user

Also, it would be nice to show an amount or 0 when converting