Some asset images are excessively large

[ReflectiveChimp]

PNGs can be resized down to 128x128 if larger and losslessly compressed
SVGs can be losslessly compressed (e.g. with SVGO)

128K ./src/images/single-assets/wBaseDOGE.png
131K ./src/images/single-assets/RETRO.svg
131K ./src/images/single-assets/oRETRO.svg
145K ./src/images/single-assets/crvUSDBTCETH3.svg
169K ./src/images/single-assets/RPL.png
177K ./src/images/single-assets/NORMUS.png
222K ./src/images/single-assets/PEARL.png
377K ./src/images/single-assets/hDAI.png
379K ./src/images/single-assets/hUSDT.png
383K ./src/images/single-assets/hSNX.png
396K ./src/images/single-assets/hETH.png
401K ./src/images/single-assets/hUSDC.png
471K ./src/images/single-assets/AERO.svg
559K ./src/images/single-assets/weETH.png

[DefiDebauchery]

Should it be added to pre-commit hooks, or is it good enough to do once-off ops?

Similarly, should we use 384 instead (128 x3 for hi-dpi screens)? I was able to get weETH to 55K at 384, for instance. Not sure where we're even using this asset, though; I only see the SVG in use.

[ReflectiveChimp]

Once off will do. [A precommit that checked the file sizes could be useful though]
Largest they are displayed in app is 48x48.
If there is X.svg and X.png in single-assets/ then X.png can be deleted as app will pick the .svg over the .png.