Fix fg color in darkmode and larger annotator popup

apps/readest-app/src/app/reader/components/annotator/Annotator.tsx

@@ -58,8 +58,8 @@ const Annotator: React.FC<{ bookKey: string }> = ({ bookKey }) => {
     settings.globalReadSettings.highlightStyles[selectedStyle],
   );
 
-  const dictPopupWidth = 400;
-  const dictPopupHeight = 300;
+  const dictPopupWidth = 480;
+  const dictPopupHeight = 360;
   const annotPopupWidth = 280;
   const annotPopupHeight = 44;
   const popupPadding = 10;

apps/readest-app/src/utils/style.ts

@@ -75,6 +75,7 @@ const getLayoutStyles = (
       tab-size: 2;
   }
   body {
+    color: ${fg};
     zoom: ${zoomLevel}%; 
     background-color: ${bg} !important;
   }