In the “Modify in RNA Builder” mode, when copying text from the “Update Sequence” window, the wrong text in JSON format is inserted

[ViktoriaTkacheva]

Steps to Reproduce

1. Switch to the Macro mode – the Sequence mode
2. Add a sequence of letters (for example, GTUA) and select any
3. Right-click on selected letters and choose the “Modify in RNA Builder” option
   
4. Change any nucleotide component in the RNA Builder
5. Click on the “Update” button
6. Copy the text from the “Update Sequence” window and paste it somewhere (for example, Word, Search)
   

Actual behavior
The text is displayed in JSON format and contains information about the monomers that are on the canvas

Expected behavior
A text is displayed in a normal readable format:
«Update Sequence
You are going to modify 2 nucleotides. Are you sure?»

Desktop (please complete the following information):

• OS: Windows 10 Pro (version 22H2) x64
• Browser: Сhrome
• Version: (124.0.6367.201 ) x64

Ketcher version 2.21.0-rc.2, Build at 2024-05-14; 08:16:29

Additional context
The same behavior is observed when copying and pasting a text from pop-up warning messages of this type:

Issue found while testing #3824