Errors are not stringified in logs

[Devin Gunay]

#209 fixed this for normal objects, but currently when the page logs errors, I get something like this:

"During provider setup:  JSHandle@error "

Would it be an easy fix to just change this line to work with JSHandle@error?

wendigo/lib/puppeteer_wrapper/puppeteer_utils.ts

Lines 3 to 10 in bdc107a

 export async function stringifyLogText(log: ConsoleMessage): Promise<string> { 
     const text = log.text(); 
     if (text.includes('JSHandle@object')) { 
         const args = await Promise.all(log.args().map(stringifyLogArg)); 
         return args.join(' '); 
     } 
     return text; 
 }