[BUG] Wrong lines in BloqadeQMC `distance_matrix`

[hz-xiaxz]

Describe the bug
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Bloqade.jl/lib/BloqadeQMC/src/lattices/Lattices.jl

Line 411 in a08355c

rj .+= a2 * n1

The rj .+= a2 * n1 should be rj .+= a2 * n2 and the errors persist the lines below.

To Reproduce
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Not applied.

Expected behavior
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Version Info

• Julia version 1.12
• Package Version (use Pkg.status() to see the version of your current environment)

Additional context
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I can work on a small PR to fix it, or tell me if you want to deprecate this function.