Add custom process names and hidden processes feature

[theaspirational]

Summary

• Custom Process Names: Rename any process to give it a friendly, memorable name
• Hidden Processes: Hide processes you don't frequently use into a collapsible submenu
• Persistent Settings: All customizations are saved and persist across app restarts

How to Use

Renaming a Process

1. Click on a process in the menu bar dropdown to open its submenu
2. Click "Rename..."
3. Enter a custom name (or leave empty and click "Reset" to restore the default)
4. The custom name will appear in the menu instead of the original process name

Hiding a Process

1. Open a process's submenu
2. Click "Hide"
3. The process will move to the "Hidden (n)" submenu at the bottom of the menu

Unhiding a Process

1. Open the "Hidden (n)" submenu
2. Find the hidden process and click to open its submenu
3. Click "Unhide"
4. The process returns to the main list

Technical Details

• Customizations are keyed by directory + command (not just directory)
• This means different processes running from the same location can have different names/hide states
• Settings are stored in UserDefaults and persist across app restarts

Screenshots

Hidden processes appear in a collapsible "Hidden" submenu with an eye-slash icon

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