add config to force terminal theming mode

.config/quickshell/ii/modules/common/Config.qml

@@ -91,6 +91,7 @@ Singleton {
                     property bool enableAppsAndShell: true
                     property bool enableQtApps: true
                     property bool enableTerminal: true
+                    property bool forceTerminalDarkMode: false
                 }
                 property JsonObject palette: JsonObject {
                     property string type: "auto" // Allowed: auto, scheme-content, scheme-expressive, scheme-fidelity, scheme-fruit-salad, scheme-monochrome, scheme-neutral, scheme-rainbow, scheme-tonal-spot

.config/quickshell/ii/modules/settings/AdvancedConfig.qml

@@ -40,7 +40,19 @@ ContentPage {
                     content: Translation.tr("Shell & utilities theming must also be enabled")
                 }
             }
-
+        }
+        ConfigRow {
+            uniform: true
+            ConfigSwitch {
+                text: Translation.tr("Force dark mode in terminal")
+                checked: Config.options.appearance.wallpaperTheming.forceTerminalDarkMode
+                onCheckedChanged: {
+                    Config.options.appearance.wallpaperTheming.forceTerminalDarkMode = checked;
+                }
+                StyledToolTip {
+                    content: Translation.tr("Ignored if terminal theming is not enabled")
+                }
+            }
         }
     }
 }