add chardet to optional dependencies

offpunk.py

@@ -3468,6 +3468,7 @@ Marks are temporary until shutdown (not saved to disk)."""
         output += " - Render HTML (bs4, readability)             : " + has(_DO_HTML)
         output += " - Render Atom/RSS feeds (feedparser)         : " + has(_DO_FEED)
         output += " - Connect to http/https (requests)           : " + has(_DO_HTTP)
+        output += " - Detect text encoding (python-chardet)      : " + has(_HAS_CHARDET)
         output += " - copy to/from clipboard (xsel)              : " + has(_HAS_XSEL)
         output += " - restore last position (less 572+)          : " + has(_LESS_RESTORE_POSITION)
         output += "\n"

pyproject.toml

@@ -30,6 +30,7 @@ file = "LICENSE"
 
 [project.optional-dependencies]
 better-tofu = ["cryptography"]
+chardet = ["chardet"]
 html = ["bs4", "readability-lxml"]
 http = ["requests"]
 process-title = ["setproctitle"]

requirements.txt

@@ -1,3 +1,4 @@
+chardet
 cryptography
 requests
 feedparser