JuliaMolSim/DFTK.jl: v0.3.0

DFTK v0.3.0 Diff since v0.2.8 Closed issues: Remove using GenericLinearAlgebra warning when GenericLinearAlgebra is already defined (#429) Documentation for spin not up to date (#436) Merged pull requests: Remove RealFourierArray and refactor internal density datastructures (#413) (@antoine-levitt) Refactor damping out of mixing datastructures (#426) (@mfherbst) Remove remaining from_fourier (#427) (@gkemlin) Remove using GenericLinearAlgebra warning when GenericLinearAlgebra is already defined (#430) (@mfherbst) CompatHelper: bump compat for "MPI" to "0.18" (#432) (@github-actions[bot]) Add RWTH Aachen funding (#435) (@mfherbst) Extra forces test for magnetic ground state (#437) (@mfherbst