popmd/wasm: reduce size of binary

[joshuasing]

Confirmation

• I have checked for similar issues.

Problem

The WASM PoP Miner binary is currently around 11M.
#146 reduces the size to 10M.

This not only requires a lot of bandwidth to distribute, but will also make things slow to load for end-users (especially those with slow download speeds).

Suggested solution

We should reduce the amount of external packages (especially large ones) that are used by service/popmd and web/popminer. This allows us to reduce the binary size as much as possible.

TinyGo would also help reduce the binary size, however it is currently a lot buggier than Go and contains several major memory leaks in their WASM implementation.

Additional Information

No response