Add new strategy fields

[engn33r]

• Add 2 new data fields for strategies: githubCode (link to github source code) and strategyType (for categorizing the type of each strategy)
• Use consistent imports for zod and cn. Before, multiple import types were used, so this is not a functional change, just for consistency
• Delete dead routes. Specifically, the files in src/routes/ (Vaults.tsx, Vault.tsx, Strategies.tsx, Strategy.tsx, Tokens.tsx) were routes that were not registered in the router and have been superseded by the generic SchemaForm/Finder UI.
• Delete unused hooks. The files under src/hooks/ (useVaultsMeta.ts, useStrategyMeta.ts) were data-fetching hooks only used by the delete routes in the prior point, so when the route was deleted, these are unused.
• Delete duplicate cn.ts file. The file at src/components/eg/cn.ts was a duplicate file, so any file importing it was updated to import the other file already in this repo.

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