create option for bold subtitles

src/strings/en-gb.json

@@ -767,6 +767,7 @@
     "LabelTime": "Time:",
     "LabelTheme": "Theme:",
     "LabelTextSize": "Text size:",
+    "LabelTextWeight": "Text weight:",
     "LabelSportsCategories": "Sports categories:",
     "LabelSortTitle": "Sort title:",
     "LabelSortOrder": "Sort order:",

src/strings/en-us.json

@@ -918,6 +918,8 @@
     "LabelTextBackgroundColor": "Text background color:",
     "LabelTextColor": "Text color:",
     "LabelTextSize": "Text size:",
+    "LabelTextWeight": "Text weight:",
+    "Bold": "Bold",
     "LabelTheme": "Theme:",
     "LabelTime": "Time:",
     "LabelTimeLimitHours": "Time limit (hours):",