Adding Batches, Groups, Approvals, Namespaces pages and other tweaks

[dechdev]

Events:

• Reference IDs are named correctly and link to appropriate pages

OffChain:

• Batches Page with slideover with manifest download
• Groups Page with slideover that links to Identities

Tokens:

• Token Approvals Page

Network:

• Namespaces Page
• Slideovers for Orgs, Nodes, and Identities pages

Histogram:

• Indication if bar is capped at config max