[Bug]: Subtitle sizing are applied every action

[MagicalDrizzle]

Guidelines

• I have encountered this bug in the latest release of FreeTube.
• I have encountered this bug in the official downloads of FreeTube.
• I have searched the issue tracker for open and closed issues that are similar to the bug report I want to file, without success.
• I have searched the documentation for information that matches the description of the bug I want to file, without success.
• This issue contains only one bug.

Describe the bug

For example - choosing a subtitle size of 200%. Performing certain actions after that will apply the size to the current size, leading to the subtitle getting bigger and bigger.
Actions that triggers it: Wind/Rewind using keyboard arrow keys, changing screen size/entering/exiting fullscreen by mouse.
Actions that does not trigger it: Changing the video time by mouse.

Expected Behavior

Subtitle size should remain as chosen.

Issue Labels

usability issue, visual bug

FreeTube Version

v0.21.3 Beta

Operating System Version

Windows 10 22H2

Installation Method

Portable

Primary API used

Local API

Last Known Working FreeTube Version (If Any)

No response

Additional Information

output.mp4

Nightly Build

• I have encountered this bug in the latest nightly build.