Fix Manganato search

[joao-salomao]

This PR fixes two bugs.

1. Wrong base URL template
   Wrong: https://chapmanganato.com/https://manganato.com/search/story/%s
   Correct: https://manganato.com/search/story/%s
2. After digging a bit on the website I found that the JS function below is being used to parse the user searches before sending the request to the server, so I implemented the same logic here too so we get the same results

function change_alias(alias) {
    var str = alias;
    str= str.toLowerCase(); 
    str= str.replace(/à|á|ạ|ả|ã|â|ầ|ấ|ậ|ẩ|ẫ|ă|ằ|ắ|ặ|ẳ|ẵ/g,"a"); 
    str= str.replace(/è|é|ẹ|ẻ|ẽ|ê|ề|ế|ệ|ể|ễ/g,"e"); 
    str= str.replace(/ì|í|ị|ỉ|ĩ/g,"i"); 
    str= str.replace(/ò|ó|ọ|ỏ|õ|ô|ồ|ố|ộ|ổ|ỗ|ơ|ờ|ớ|ợ|ở|ỡ/g,"o"); 
    str= str.replace(/ù|ú|ụ|ủ|ũ|ư|ừ|ứ|ự|ử|ữ/g,"u"); 
    str= str.replace(/ỳ|ý|ỵ|ỷ|ỹ/g,"y"); 
    str= str.replace(/đ/g,"d");
    str= str.replace(/ /g,"_");
    str= str.replace(/[^0-9a-z\s]/gi, '_');
    str= str.replace(/_+_/g,"_");
    str= str.replace(/^\_+|\_+$/g,""); 
    return str;
}

JS function location on the website

[rd6260]

Hey @joao-salomao I hope you're doing well. I just wanted to ask, if mangal still working? cause its not showing any results for me