feat: Support DynamicMPT (XLS-94)

[pdp2121]

High Level Overview of Change

• Decode and display the new MutableFlags field on MPTokenIssuanceCreate and the MPTokenIssuance ledger object, plus the new MutableFlags / MPTokenMetadata / TransferFee fields on MPTokenIssuanceSet.
• MPT token page Settings: shows a Mutable pill on capabilities the issuer can still enabled, hidden once a capability is enabled (capabilities are enable-only in the merged scheme), plus Mutable rows for Metadata and Transfer Fee.

Context of Change

Spec: https://github.com/XRPLF/XRPL-Standards/tree/master/XLS-0094-dynamic-MPT
Corresponding merged rippled PRs:

#5705 – Support DynamicMPT XLS-94d (core implementation)
#5797 – Rename mutable flags for DynamicMPT XLS-94d
#5820 – Rename flags for DynamicMPT
#6834 – Fix DynamicMPT for Attackathon
#7439 – Remove clear mutable flags for DynamicMPT XLS-94

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (non-breaking change that only restructures code)
• Tests (You added tests for code that already exists, or your new feature included in this PR)
• Documentation Updates
• Translation Updates
• Release

Before / After

MPTokenIssuanceCreate

MPTokenIssuanceSet with MutableFlags / MPTokenMetadata / TransferFee

MPT page with new Settings