Image export - font size issue

**Steps to Reproduce**
1. Draw a structure.
2. Add a text label (H+ here)
3. Select the text and change its font size.
4. Press Ctrl+S.
5. Save/export as SVG or picture.

**Actual behavior**
The exported image does not match what is displayed on the canvas/preview.
The text label is shifted and/or resized incorrectly in the exported file.
In my example, `H+` appears correctly positioned in Ketcher, but in the exported image it is moved and does not preserve the canvas layout.

**Expected behavior**
The exported image should match exactly what is visible in the Ketcher canvas/preview, including text size and position.

**Screenshots**

**Desktop (please complete the following information):**
- OS: Linux Mint
- Browser [e.g. chrome, safari] - Firefox
- Version [e.g. 22]: 150.0 (but same issue on chrome)

**Ketcher version** [e.g. v3.12.0].
To determine it, hover over the header of the Ketcher tab in a browser.

**Test case**
Add test case number (in EPMLSOPKET-* format) if bug was found during test case run.

**Additional context**
Add any other context about the problem here.