Add paste support to configuration input fields on macOS

[chyujing]

Description

On macOS, the input fields for modifying configuration files do not support pasting content. This is a usability issue that makes configuration changes more cumbersome.

Steps to Reproduce

1. Navigate to the configuration section in the OceanBase seekdb interface.
2. Attempt to paste content into one of the configuration input fields (e.g., using Cmd+V).
3. Observe that the paste operation does not work.

The following input fields are affected (as shown in the screenshot):

Environment

• System: macOS
• Version: Please provide the output of bin/observer -V. If this test also involves a version change for obproxy, please also provide the output of obproxy -V.
• Is this an RD-provided temporary version?: No
• Reproducibility: Consistently reproducible
• Test Changes: Not specified
• Other environmental anomalies/changes: None reported
• Environment Information: Not provided (e.g., connection strings, deployment info).
• Log Information: Not provided.

Impact

This is a usability issue that affects the efficiency of configuring the database, especially when users need to copy and paste values from other sources.

Other Notes

This is a feature request to improve the user interface. The request is for the input fields in the configuration interface to support standard paste operations (Cmd+V) on macOS.