feat: use markdown-wasm instead of marked

Author: aminya

package.json

@@ -38,7 +38,8 @@
   },
   "dependencies": {
     "dompurify": "^2.2.6",
-    "marked": "^1.2.9"
+    "make-synchronous": "^0.1.1",
+    "markdown-wasm": "^1.2.0"
   },
   "devDependencies": {
     "@types/atom": "1.40.7",