Cannot the font size of a clip's note

**Describe the bug**
When changing the font size of the clip's note through Settings -> Appearance, nothing happens.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to Preference -> Appearance
2. Press Shift+F2 in order to enter into to the edit mode of the note's apparance
3. Firstly, try to find by touch or by trial and error the button that is responsible for editing the appearance of the note's font
4. After you find it, try to change the size or any other parameter of the font
5. As a result, no changes ultimately result in any alterations to the note's font.

**Expected behavior**
I expect to see, that the note's font would change its appearance in accordance with the introduced modifications.

**Screenshots**

[CopyQ-Notes-FontSize-Video_2023-10-27_101633.webm](https://github.com/hluk/CopyQ/assets/11407417/7f4ba6d3-d36a-48f5-80c8-db45cbbda6bd)

**Version, OS and Environment**
- CopyQ 7.1.0
- OS: Microsoft Windows [Version 10.0.19045.2673] 64bit
- Browser: Firefox 119.0 64bit
- Browser: Chrome 118.0.5993.90 (Official Build) (64-bit)
- Browser: Edge 118.0.2088.69 (Official build) (64-bit)