chore: added tree shaking and bundling optimizations

[alexlwn123]

• Added Side Effects for tree shaking optimizations
• updated bundled fedimint-client-wasm to private. It shouldn't link to any other package on npm.
• removed wasm folder from the bundled package - since it's already included as bundledDependencies

[changeset-bot]

⚠️ No Changeset found

Latest commit: 69eec4c

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[github-actions]

Size Change: +5 B (0%)

Total Size: 3.61 MB

Filename	Size	Change
packages/core-web/dist/worker.js	533 B	+5 B (+0.95%)

ℹ️ View Unchanged

Filename	Size
packages/core-web/dist/index.js	1.77 kB
packages/core-web/wasm/fedimint_client_wasm_bg.wasm	3.61 MB

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