Fixed: Broken links as Layerzero revamped its documentation recently and removed old Goerli and added Sepolia network support for the Layerzero OApp example.

[Bvvvp009]

What changed? Why?
Changed in https://docs.base.org/learn/onchain-app-development/cross-chain/bridge-tokens-with-layerzero
Fixed a broken links and Removed old unsupported Goerli changed to Base sepolia example in the Learn →Onchain-app-development →Cross-chain → Bridge tokens with layerzero section. The original URL pointed to a non-existent page; it now correctly links to: Layerzero relevant sesctions.
Notes to reviewers
This fix sure changed broken links and as most of the OApp example follwed the latest layerzero V2 documentation i have changed chain to Sepolia.
How has it been tested?
Tested all links one by one to make sure they are correct and pointing to relevent sections.

[cb-heimdall]

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