fix active total stake

[tzemanovic]

Describe your changes

fixes #4823

To apply this fix on chain it is required to:

• update of txs wasms
  • tx_deactivate_validator
  • tx_reactivate_validator
  • tx_unjail_validator
• coordinated update at specific height with NAMADA_MIGRATION_HEIGHT set - this will trigger the migration included in namadan

Checklist before merging

• If this PR has some consensus breaking changes, I added the corresponding breaking:: labels
  • This will require 2 reviewers to approve the changes
• If this PR requires changes to the docs or specs, a corresponding PR is opened in the namada-docs repo
  • Relevant PR if applies:
• If this PR affects services such as namada-indexer or namada-masp-indexer, a corresponding PR is opened in that repo
  • Relevant PR if applies:

[mergify]

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