fix: vertical position style in infobox image block

[keiya01]

Overview

I fixed reearth/reearth-visualizer#202.

What I've done

I fixed to use height: 100%; when vertical position property is specified center in infobox image block.

What I haven't done

How I tested

Screenshot

Before	After

Which point I want you to review particularly

Memo

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[codecov]

Codecov Report

Merging #236 (1df5e56) into main (723486d) will decrease coverage by 0.73%.
The diff coverage is n/a.

❗ Current head 1df5e56 differs from pull request most recent head b938c7d. Consider uploading reports for the commit b938c7d to get more accurate results

@@            Coverage Diff             @@
##             main     #236      +/-   ##
==========================================
- Coverage   51.72%   50.98%   -0.74%     
==========================================
  Files          58       58              
  Lines        1162     1165       +3     
  Branches      184      184              
==========================================
- Hits          601      594       -7     
- Misses        497      508      +11     
+ Partials       64       63       -1     

Impacted Files	Coverage Δ
src/config.ts	18.91% <0.00%> (-8.01%)	⬇️
src/state/index.ts	77.41% <0.00%> (-1.37%)	⬇️
src/i18n/index.tsx	100.00% <0.00%> (ø)
src/theme/provider.tsx	80.00% <0.00%> (ø)

[KaWaite]

Thanks!