It can be done manually (select, transponse, sort, transpose back), but if you want a script by some reason, here you go:

function myFunction() {
  var sheet = SpreadsheetApp.getActiveSheet();
  var data = sheet.getDataRange().getValues();
  
  // credits: stackoverflow.com/a/36164530/14265469
  const transpose = m => m[0].map((x,i) => m.map(x => x[i]))

  var [col1, col2, ...etc] = transpose(data);
  var table = transpose([col1, col2, ...etc.sort()]);

  sheet.clearContents().getRange(1,1,table.length,table[0].length).setValues(table)
}

Before:

After: