Fix inline >quote regex for quotes after a <tag>

Example, if a room list item subtitle was ">a \n >b", only ">a" was
wrapped with the "quote" class and colored appropriatly due to <a> being
wrapped in a <span> and the regex failing on that

src/backend/html_markdown.py

@@ -180,7 +180,7 @@ class HTMLProcessor:
         r"https?://matrix.to/#/[!#]\S+/\$\S+", re.IGNORECASE,
     )
 
-    inline_quote_regex = re.compile(r"(^|⏎)(\s*>[^⏎\n]*)", re.MULTILINE)
+    inline_quote_regex = re.compile(r"(^|⏎|>)(\s*>[^⏎\n]*)", re.MULTILINE)
 
     quote_regex = re.compile(
         r"(^|<span/?>|<p/?>|<br/?>|<h\d/?>)"