feat: add contract views test

[maxwellward]

This pull request adds a new "Contract Views" test module to the application, allowing users to execute read-only views on Tezos smart contracts and retrieve computed data without creating transactions. The contract view functionality is separated from the TZIP-16 metadata module, with dedicated UI and logic. Related Playwright tests are updated to reflect this separation. The most important changes are grouped below:

New Contract Views Feature

• Added a new test entry "contract-views" in tests.ts, including setup instructions, documentation links, diagrams, and the Eye icon. [1] [2]
• Created contract-views.vue and contract-views.ts components to provide a UI and logic for fetching contract metadata and executing contract views, including result display and error handling. [1] [2]

Refactoring and Separation of Concerns

• Removed view execution logic and UI from the TZIP-16 metadata module (tzip16-metadata.ts and tzip16-metadata.vue), focusing it solely on retrieving and displaying contract metadata. [1] [2] [3] [4] [5]
• Updated related tests for "TZIP-16 Contract Metadata" to remove contract view execution, and added a dedicated Playwright test for the new "Contract Views" module. [1] [2]

Cross-linking and Documentation

• Updated related tests for both modules to reference each other, improving discoverability and navigation between "Contract Views" and "TZIP-16 Contract Metadata".

UI Improvements

• Added the Eye icon to the new module and updated icon imports.

These changes modularize contract view functionality, provide a clearer user experience, and improve maintainability.