fix (macOS): Show quick terminal on full-screen app (#4049)

closes #2721  

This PR resolves the issue where the Quick Terminal was not visible when
pressing the global keybind while a full-screen app was active.

### Changes  
- Added new configuration options for `quick-terminal-space-behavior`
- The Quick Terminal will now overlay properly on top of full-screen
applications

#### Behavior

##### `quick-terminal-space-behavior = remain`

- The Quick Terminal will be remain open on the space when switching
spaces.

##### `quick-terminal-space-behavior = move`

- The Quick Terminal will be moved to active space when switching
spaces.

src/config/Config.zig

@@ -1567,6 +1567,23 @@ keybind: Keybinds = .{},
 /// Set it to false for the quick terminal to remain open even when it loses focus.
 @"quick-terminal-autohide": bool = true,
 
+/// This configuration option determines the behavior of the quick terminal
+/// when switching between macOS spaces. macOS spaces are virtual desktops
+/// that can be manually created or are automatically created when an
+/// application is in full-screen mode.
+///
+/// Valid values are:
+///
+///  * `move` - When switching to another space, the quick terminal will
+///    also moved to the current space.
+///
+///  * `remain` - The quick terminal will stay only in the space where it
+///    was originally opened and will not follow when switching to another
+///    space.
+///
+/// The default value is `move`.
+@"quick-terminal-space-behavior": QuickTerminalSpaceBehavior = .move,
+
 /// Whether to enable shell integration auto-injection or not. Shell integration
 /// greatly enhances the terminal experience by enabling a number of features:
 ///
@@ -5705,6 +5722,12 @@ pub const QuickTerminalScreen = enum {
     @"macos-menu-bar",
 };
 
+// See quick-terminal-space-behavior
+pub const QuickTerminalSpaceBehavior = enum {
+    remain,
+    move,
+};
+
 /// See grapheme-width-method
 pub const GraphemeWidthMethod = enum {
     legacy,