System breaks IDT export line if it is longer than 80 chars

[AlexeyGirin]

Steps to Reproduce

1. Switch to Macro
2. Load from file: System breaks IDT export line if it is longer than 80 chars.zip OR create on the canvas followng configuration:
3. Try to export canvas to IDT

Actual behavior System show the following result:

/52MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA
//i2MOErA//i2MOErA//i2MOErA//3Phos/

Expected behavior System show the following result (solid line, w/o new line breaks): /52MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//i2MOErA//3Phos/

Versions:

• Indigo Toolkit Version 1.21.0-rc.1.0-g9194599b2-wasm32-wasm-clang-19.0.0
• Ketcher Version 2.22.0-rc.2 Build at 2024-06-03; 18:43:00
• Chrome Version 125.0.6422.142 (Official Build) (64-bit)
• Windows 10

Issue found while testing https://github.com/epam/Indigo/issues/1900