Added products and Stripe data to exports and imports

[matthanley]

• The migration path from 4.x on SQLite to 5.0 on MySQL requires an export/import
• Exports don't include the Stripe info required to map members to tiers correctly on import. This change fixes that.

[codecov]

Codecov Report

Merging #14873 (5115692) into main (d6d6841) will decrease coverage by 0.25%.
The diff coverage is 20.55%.

@@            Coverage Diff             @@
##             main   #14873      +/-   ##
==========================================
- Coverage   61.96%   61.70%   -0.26%     
==========================================
  Files         568      571       +3     
  Lines       45984    46253     +269     
  Branches     4190     4192       +2     
==========================================
+ Hits        28495    28542      +47     
- Misses      17445    17667     +222     
  Partials       44       44              

Impacted Files	Coverage Δ
...rver/data/importer/importers/data/data-importer.js	16.08% <8.33%> (-1.61%)	⬇️
core/server/data/importer/importers/data/base.js	29.97% <12.50%> (-0.20%)	⬇️
...re/server/data/importer/importers/data/products.js	16.17% <16.17%> (ø)
...rver/data/importer/importers/data/stripe-prices.js	18.64% <18.64%> (ø)
...er/data/importer/importers/data/stripe-products.js	21.31% <21.31%> (ø)
...server/data/importer/importers/data/newsletters.js	75.55% <37.50%> (-13.64%)	⬇️
core/server/data/importer/importers/data/posts.js	42.20% <39.47%> (-2.24%)	⬇️
...re/server/data/importer/importers/data/settings.js	71.89% <100.00%> (ø)

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