[Bug] Pasting clipboard text into Files saves escaped Unicode sequences instead of box-drawing characters

[iamkartiknayak]

Issue/Description:
When pasting structured text (such as a directory tree using box-drawing characters) directly into Files from the clipboard, certain characters are incorrectly saved as escaped Unicode sequences (e.g. \u2502, \u2514\u2500\u2500\u2500) instead of the original box-drawing characters.

For example, copying and pasting:

project_root
│ README.md
│
└───some_folder

Results in the saved content containing:

project_root
\u2502 README.md
\u2502
\u2514\u2500\u2500\u2500some_folder

Version:

 cosmic-files:
  Installed: 1.0.6~1770746763~24.04~d668d04

Steps to Reproduce:

• Copy a directory tree structure containing box-drawing characters (e.g. │ └ ─).
• Open COSMIC Files.
• Paste the content directly (Pasted text).
• Open the file and observe the escaped Unicode sequences.

Expected Behavior:
Unicode characters such as box-drawing characters should be preserved as-is in UTF-8 format. The saved file should contain the original characters, not escaped \uXXXX sequences.

Other Notes:

Text pasted into Editor vs Text pasted into Files