feat(config): add icon theme property to CosmicTk config

src/app/core.rs

@@ -46,6 +46,9 @@ pub struct Core {
     /// Enables debug features in cosmic/iced.
     pub debug: bool,
 
+    /// Disables loading the icon theme from cosmic-config.
+    pub(super) icon_theme_override: bool,
+
     /// Whether the window is too small for the nav bar + main content.
     is_condensed: bool,
 
@@ -95,6 +98,7 @@ impl Default for Core {
     fn default() -> Self {
         Self {
             debug: false,
+            icon_theme_override: false,
             is_condensed: false,
             keyboard_nav: true,
             nav_bar: NavBar {