creating the first dapp with JavaScript & TypeScript.

** The dapp should have four button **
    - connect = inorder to connect the website to a Web3 Wallet(metamask) ✅
    - Get balance (retriving the balance of the smart contract we are interacting with.) ✅
    - Buy coffe (sending some amount of Eth to smart contract Fund func) ✔️
    - withdraw (letting the owner to withdraw the contract balance) ✔️

- learning Objectives.
    - connecting web3 wallet to local website using Viem's request addresses. ✅
    - interacting with contract functions with viem's write contract .✅
    - viem's different client for different puropose, wallet client and public client.✅
    - DOM ✅
    - javascript vs Typescript(and their basics) ✅
      - Typescript identify error in the runtime itself.
      - Typescript is a superset of javascript.
      - Typescript need to be compiled to javascript.
    - typescript based dapp. ✔️
        -  installing required packages through npm or pnpm such as (typescript,viem,vite)