[BUG] Note cards are slightly resized on hover

[Sergey Kolchenko]

I noticed that an undefined --interactive-accent-tint CSS variable is used for coloring note card borders on hover.
That makes the interpreter to reset border width to zero and cards become wider by 2px. In some cases card text takes less lines on hover.

According to the documentation for developers, the --interactive-accent variable should be used instead of aforementioned above one.

Before:

After:

[Pash]

Solid find, fixed in 0.0.58, thank you for reporting and testing!