Improve UI/UX: show current settings state in all menus

[ZenonEl]

Problem

Users can't see current setting values when navigating settings menus. After changing a setting, there's no confirmation of what changed. Users have to guess what's currently active.

Examples

Default actions menu

Currently shows just buttons: "Send to all contacts", "Send to default groups", "Off"
Should show:

📋 Current settings:
• Default action: Send to all contacts ✅
• Auto-send delay: 5 seconds
• Status: Active

Choose new action:
[Send to all contacts] [Send to groups]
[Send to specified] [Off]

Privacy settings

Should show current state of each rule (enabled/disabled, current value)

Auto-send time

After changing, should confirm: "Auto-send delay set to 5 seconds ✅"

Requirements

• All settings menus show current values before action buttons
• After changing a setting, show confirmation with old → new value
• Use consistent formatting (emoji indicators for on/off states)
• Contact list shows DisplayName if set, with actual name in parentheses
• Mute status shown next to contact name (🔇 until HH:MM)

Affected menus

• Default actions (video_default_actions_menu)
• Auto-send time (user_set_auto_send_video_time)
• Privacy settings (all privacy submenus)
• Contact list (view_contacts)
• Group settings