Improve "Remove extra paragraph spacing" feature

android/app/src/main/assets/js/core.js

@@ -465,7 +465,14 @@ window.addEventListener('DOMContentLoaded', async () => {
     }
 
     if (reader.generalSettings.val.removeExtraParagraphSpacing) {
-      html = html.replace(/<\s*br[^>]*>/gi, '\n').replace(/\n{2,}/g, '\n\n');
+      html = html
+        .replace(/(?:&nbsp;\s*|[\u200b]\s*)+(?=<\/?p[> ])/g, '')
+        .replace(/<br>\s*<br>\s*(?:<br>\s*)+/g, '<br><br>') //force max 2 consecutive <br>, chaining regex
+        .replace(
+          /<br>\s*<br>(?:(?!\s*<(?:em|[iab]|strong|span)[> ])|(?<!(?:\/em|\/[iab]|\/strong|\/span)>\s*<br>\s*<br>))\s*/g,
+          '',
+        ) //look-around double br. If certain tags aren't near, delete the double br.
+        .replace(/<br>(?:(?=\s*<\/?p[> ])|(?<=<\/?p>\s*<br>))\s*/g, '');
     }
     reader.chapterElement.innerHTML = html;
   });