Mixed Formats (DOS and UTF-8)

### What Happened?

Error message says "_No text Found. Maybe corrupt or no text file_" while trying to open an 178kb php file with code version 7.1.0-1 on Manjaro Linux with everything up to date. Every other php file is working fine like expected! Looks like code cant read the file into the buffer so it event cant realize its a php file

### Steps to Reproduce

1. Opening 178kb php file inside code or from Dolphin Browser results in the following error:

### Expected Behavior

Just wanted to view the php code

### OS Version

Other Linux

### Software Version

Latest release (I have run all updates)

### Log Output

_No response_

### Hardware Info

CPU: dual core Intel Core i3-4130 (-MT MCP-) speed/min/max: 1450/800/3400 MHz
Kernel: 6.1.44-1-MANJARO x86_64 Up: 29m Mem: 3.15/11.6 GiB (27.1%)
Storage: 461.98 GiB (3.9% used) Procs: 194 Shell: Zsh inxi: 3.3.29

首先，使用 178 KB 的 PHP 文件在 Manjaro 上的 Code 中重现该失败，然后将其与能够成功打开的 PHP 文件进行比较。检查报告的 DOS 和 UTF-8 混合格式如何影响文件打开；当 Code 显示该文件而不是报告未找到文本时，即表示完成。

由索引模型根据 Issue 内容生成。