Add network speed display

[ladeng07]

Context of Contribution

• Bug Fix
• Refactoring
• New Feature
• Others

Reason for the new feature

Hello, I've been using RunCat for four years. I've added a network speed display feature that shows up when you hover the mouse over the system tray icon. This is incredibly helpful for me to check my real-time network speed while watching videos or during downloads/uploads, eliminating the need to install additional software just to monitor my internet speed.

Checklist

• This PR does not contain commits of multiple contexts.
• Code follows proper indentation and naming conventions.
• Works correctly in both dark theme and light theme.
• Works correctly on any device.

[mor39a]

Hi @ladeng07, reviewing your fork, it appears that instead of using the main branch as a base, you're using the fix-bug-icon-disposed branch. This makes it seem like you were trying to address issues related to PR #241.

[ladeng07]

Hi @ladeng07, reviewing your fork, it appears that instead of using the main branch as a base, you're using the fix-bug-icon-disposed branch. This makes it seem like you were trying to address issues related to PR #241.

Sorry, I started from the wrong branch. I will fix it.

[Kyome22]

@ladeng07 Has the revision been completed?
If possible, please indicate whether it has been addressed by replying to each of my review comments.
Generally, one review is addressed with one commit.

[ladeng07]

@ladeng07 Has the revision been completed? If possible, please indicate whether it has been addressed by replying to each of my review comments. Generally, one review is addressed with one commit.

@Kyome22 I apologize for my lack of proficiency, but I believe I have completed the revision work.

[Kyome22]

Refactoring is needed, but I've determined that it's mergeable.