add filter on ISIN and remove duplicate from same mutual funds

[bhavy3103]

try to solve the issue of duplicate stock entry in the same mutual funds. Update the googleLogin function and add a filter there to remove duplicate stocks using the filter on ISIN.

setStockDetails((prevDetails) => { const uniqueStocks = [...prevDetails, stockDetail].filter( (stock, index, self) => index === self.findIndex((s) => s.ISIN === stock.ISIN) ) return uniqueStocks; })

like above way

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