fix(nft-thumbnail): add width to thumbnail

[MuckT]

Description

It looks like #3903 was merged without adding a width to the NFT thumbnail. Since we don't have the dimentions of the images prior to fetching this causes render issues on low latency networks.

iOS Before

Screen.Recording.2023-06-29.at.8.42.23.AM.mov

iOS After

Screen.Recording.2023-06-29.at.8.49.28.AM.mov

Test plan

Tested locally on iOS and with network link conditioner to simulate poor network conditions.

Related issues

#3903

Backwards compatibility

Yes

[codecov]

Codecov Report

Merging #3925 (8ce76c1) into main (a6f8313) will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #3925   +/-   ##
=======================================
  Coverage   82.27%   82.27%           
=======================================
  Files         708      708           
  Lines       26289    26289           
  Branches     3584     3584           
=======================================
+ Hits        21629    21630    +1     
+ Misses       4597     4596    -1     
  Partials       63       63           

Impacted Files	Coverage Δ
src/nfts/NftsInfoCarousel.tsx	100.00% <ø> (ø)

... and 1 file with indirect coverage changes

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[kathaypacific]

thanks!!