🐛 [BUG] When the port is occupied, `swanlab watch` does not prompt an error.

[Zeyi-Lin]

🐛 Bug description [Please make everyone to understand it]

When the port of swanlab watch is occupied, the process is terminated directly without displaying any error message.

🧑‍💻 Step to reproduce

Open swanlab watch on two terminals.

👾 Expected result

When detected occupation, give the user a prompt message.

🚑 Any additional [like screenshots]

• SwanLab Version: v0.1.1

• Platform: MacOS M1Max

[SAKURA-CAT]

This issue is a duplicate of #81. By the way, we are in the process of identifying the related errors. Please be patient while we investigate.