feat(dpp)!: lower indexed string properties constraints

[jawid-h]

Issue being fixed or feature implemented

Temporarily lowering constraints of indexed string properties due to the way how grovedb works internally.

What was done?

• lowered constraints to 64 characters or 256 bytes

How Has This Been Tested?

• unit tests

Breaking Changes

• old contract schemas that have indexed string properties of longer length are no longer valid
• DPNS now supports only cut versions of domain names due to lower constraints

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation

For repository code-owners and collaborators only

• I have assigned this pull request to a milestone