Update and standardize error and empty states

[ginny-d]

🔗 Figma link to component

Related: https://github.com/hirosystems/explorer/issues/1335

Standardize error pages

🔗 Figma link to mock-up

• Text styles and buttons
• Move page title to the error section

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Update filter empty state

🔗 Figma link to mock-up

• Icon should be on a lighter weight/stroke
• Update text styles

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Update search empty state

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Update error boundaries around page sections

Related: https://github.com/hirosystems/explorer/issues/1333