chore: follow the general comments style

src/features/ChangeAppTheme/model/store/ThemeManager/ThemeManager.svelte.ts

@@ -41,15 +41,25 @@ type ThemeSource = 'system' | 'user';
  */
 class ThemeManager {
     // Private reactive state
-    /** Current theme value ('light' or 'dark') */
+    /**
+     * Current theme value ('light' or 'dark')
+     */
     #theme = $state<Theme>('light');
-    /** Whether theme is controlled by user or follows system */
+    /**
+     * Whether theme is controlled by user or follows system
+     */
     #source = $state<ThemeSource>('system');
-    /** MediaQueryList for detecting system theme changes */
+    /**
+     * MediaQueryList for detecting system theme changes
+     */
     #mediaQuery: MediaQueryList | null = null;
-    /** Persistent storage for user's theme preference */
+    /**
+     * Persistent storage for user's theme preference
+     */
     #store = createPersistentStore<Theme | null>('glyphdiff:theme', null);
-    /** Bound handler for system theme change events */
+    /**
+     * Bound handler for system theme change events
+     */
     #systemChangeHandler = this.#onSystemChange.bind(this);
 
     constructor() {
@@ -64,22 +74,30 @@ class ThemeManager {
         }
     }
 
-    /** Current theme value */
+    /**
+     * Current theme value
+     */
     get value(): Theme {
         return this.#theme;
     }
 
-    /** Source of current theme ('system' or 'user') */
+    /**
+     * Source of current theme ('system' or 'user')
+     */
     get source(): ThemeSource {
         return this.#source;
     }
 
-    /** Whether dark theme is active */
+    /**
+     * Whether dark theme is active
+     */
     get isDark(): boolean {
         return this.#theme === 'dark';
     }
 
-    /** Whether theme is controlled by user (not following system) */
+    /**
+     * Whether theme is controlled by user (not following system)
+     */
     get isUserControlled(): boolean {
         return this.#source === 'user';
     }