Add "Remove Proxy Helper Tool" button in advance

[NghiaTranUIT]

🐶 Brief

Few users request the feature to remove "Proxy Helper Tool" in Advance tab. We should offer it

👑 Criteria

• Remove Helper tool from /Library/PrivilegedHelperTools/com.proxyman.NSProxy.HelperTool
• Add Uninstall btn
• Click to open this folder

[NghiaTranUIT]

🤯 Changelogs

• Able to uninstall Proxy Helper Tool
• Click on title to open the directory of Helper Tool
• Fix typo in Network Proxy Settings screen contains typo #191