fix: Chain param in query after switching network to bsc (#10715)

![image](https://github.com/user-attachments/assets/ad9addc7-6776-4808-ad2e-943adc4bf833)

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---

## PR-Codex overview
This PR updates the `useSwitchNetwork` hook and `WrongNetworkModal`
component to remove conditional setting of the `chain` query parameter
based on `chainId`.

### Detailed summary
- Removed conditional setting of `chain` query parameter based on
`chainId` in `useSwitchNetwork` hook.
- Removed conditional setting of `chain` query parameter based on
`chainId` in `WrongNetworkModal` component.

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question}`

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apps/web/src/components/NetworkModal/WrongNetworkModal.tsx

@@ -46,7 +46,7 @@ export function WrongNetworkModal({ currentChain, onDismiss }: { currentChain: C
           pathname: router.pathname,
           query: {
             ...router.query,
-            chain: chainId === ChainId.BSC ? null : CHAIN_QUERY_NAME[chainId],
+            chain: CHAIN_QUERY_NAME[chainId],
           },
         },
         undefined,

apps/web/src/hooks/useSwitchNetwork.ts

@@ -28,7 +28,7 @@ export function useSwitchNetworkLocal() {
           pathname: router.pathname,
           query: {
             ...router.query,
-            chain: chainId === ChainId.BSC ? null : CHAIN_QUERY_NAME[chainId],
+            chain: CHAIN_QUERY_NAME[chainId],
           },
         },
         undefined,