fix(HeaderBlock): theme dark (#609)

Author: Juli Ovechkina

src/blocks/Header/Header.scss

@@ -25,7 +25,7 @@ $backgroundWidth: 1440px;
 
         &_theme_dark {
             #{$block}__title,
-            #{$block}__description .yfm {
+            #{$block}__overtitle {
                 color: var(--g-color-text-light-primary);
             }
         }

src/blocks/Header/Header.tsx

@@ -133,7 +133,10 @@ export const HeaderBlock = (props: WithChildren<HeaderBlockFullProps>) => {
                                         <div className={b('description')}>
                                             <YFMWrapper
                                                 content={description}
-                                                modifiers={{constructor: true}}
+                                                modifiers={{
+                                                    constructor: true,
+                                                    constructorTheme: textTheme,
+                                                }}
                                             />
                                         </div>
                                     )}

styles/yfm.scss

@@ -60,11 +60,11 @@
                 margin-bottom: $indentXXXS;
             }
         }
-    }
 
-    &_theme_dark {
-        p {
-            color: var(--g-color-text-light-primary);
+        &_theme_dark {
+            p {
+                color: var(--g-color-text-light-primary);
+            }
         }
     }