Refit VAR results using new baseline specification

[matdehaven]

The internal VFCI matches the external VFCI when using (1) the same time sample (through 2023), (2) the same measure for consumption.

Rerun various analysis with this new specification to make sure none of our prior results change substantially.

• [x] VAR max share unemployment vs VAR max share VFCI
• [x] VAR VFCI Choleskys
• [x] Mean - vol VAR hetreg figures
• [x] VAR hetregs