Fix crash when wrapping with wide characters

Update contact_ui.py to use already-existing custom wrap function
implemented in nav_utils instead of textwrap library. Update custom
wrap_text function to use east_asian_width to determine characters that
can use two columns of width.

contact/ui/contact_ui.py

@@ -1,5 +1,4 @@
 import curses
-import textwrap
 import logging
 import traceback
 from typing import Union
@@ -12,7 +11,7 @@ from contact.utilities.db_handler import get_name_from_database, update_node_inf
 from contact.utilities.input_handlers import get_list_input
 import contact.ui.default_config as config
 import contact.ui.dialog
-from contact.ui.nav_utils import move_main_highlight, draw_main_arrows, get_msg_window_lines
+from contact.ui.nav_utils import move_main_highlight, draw_main_arrows, get_msg_window_lines, wrap_text
 from contact.utilities.singleton import ui_state, interface_state
 
 
@@ -549,7 +548,7 @@ def draw_messages_window(scroll_to_bottom: bool = False) -> None:
         row = 0
         for prefix, message in messages:
             full_message = f"{prefix}{message}"
-            wrapped_lines = textwrap.wrap(full_message, messages_win.getmaxyx()[1] - 2)
+            wrapped_lines = wrap_text(full_message, messages_win.getmaxyx()[1])
             msg_line_count += len(wrapped_lines)
             messages_pad.resize(msg_line_count, messages_win.getmaxyx()[1])
 

contact/ui/nav_utils.py

@@ -1,5 +1,7 @@
 import curses
 import re
+from unicodedata import east_asian_width
+
 from contact.ui.colors import get_color
 from contact.utilities.control_utils import transform_menu_path
 from typing import Any, Optional, List, Dict
@@ -293,6 +295,8 @@ def get_wrapped_help_text(
 
     return wrapped_help
 
+def text_width(text: str) -> int:
+    return sum(2 if east_asian_width(c) in "FW" else 1 for c in text)
 
 def wrap_text(text: str, wrap_width: int) -> List[str]:
     """Wraps text while preserving spaces and breaking long words."""
@@ -304,7 +308,7 @@ def wrap_text(text: str, wrap_width: int) -> List[str]:
     wrap_width -= margin
 
     for word in words:
-        word_length = len(word)
+        word_length = text_width(word)
 
         if word_length > wrap_width:  # Break long words
             if line_buffer: