从字符串中剔除所有新行字符（换行符）。
str
{String}
return
{Array}
{{ strip_newlines str }}
{{!-- 带有换行 --}}{{{ product.description }}}{{!-- 移除换行 --}}{{{ strip_newlines product.description }}}
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'%3e%3crect%20x='5.63086'%20y='7.26086'%20width='13'%20height='10'%20rx='1'%20fill='white'/%3e%3cpath%20d='M12.1306%2013.0664L-4.01956%200.735206L28.2809%200.735209L12.1306%2013.0664Z'%20stroke='%231A2C42'%20stroke-linejoin='round'/%3e%3c/g%3e%3cdefs%3e%3cclipPath%20id='clip0_716_14599'%3e%3crect%20x='5.63086'%20y='7.26086'%20width='13'%20height='10'%20rx='1'%20fill='white'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)