feat: add SWHIT token to mainnet list

[wheat-eco]

Action: add token
Context / rational: Adding SWHIT token, a native token on Linea mainnet.

PR checklist:

• I've verified and published the contract source
• I've kept the token list in alphabetical order based on token symbol
• I've updated the updatedAt (and potentially createdAt) fields
• I've updated the list version number as per README instruction

[wheat-eco]

Modified and ready to be merged , Thank you for Reviewing

[ahah-ahah]

@wheat-eco please make sure

1. your token is on Coingecko: https://support.coingecko.com/hc/en-us/articles/7291312302617-How-to-list-new-cryptocurrencies-on-CoinGecko
2. update the file version as mentioned on README:

Update the file version:
Increase patch when modifying information of an existing token.
Increase minor when modifying adding a new token.
Increase major when changing the structure of the file.