Fix mark toggle script for whitespace session names

- Handle display format conversion (spaces to underscores) when checking marked status
- Silence sesh mark/unmark command output to avoid duplicate messages
- Only show clean tmux display messages in status bar

Author: cni-locates-rumen

scripts/sesh-toggle-mark.sh

@@ -10,18 +10,20 @@ SESSION=$(tmux display-message -p '#S')
 WINDOW=$(tmux display-message -p '#I')
 
 # Check if currently marked by trying to list marked sessions and checking for our session:window
-if sesh list --marked | grep -q "${SESSION}:.*\(${WINDOW}\)"; then
+# Convert session name spaces to underscores to match display format
+SESSION_DISPLAY=$(echo "$SESSION" | tr ' ' '_')
+if sesh list --marked | grep -q "${SESSION_DISPLAY}:.*\(${WINDOW}\)"; then
     # Currently marked - unmark it
-    if sesh unmark; then
+    if sesh unmark >/dev/null 2>&1; then
         tmux display-message "❌ Unmarked window ${SESSION}:${WINDOW}"
     else
         tmux display-message "❌ Failed to unmark window ${SESSION}:${WINDOW}"
     fi
 else
     # Not marked - mark it
-    if sesh mark; then
+    if sesh mark >/dev/null 2>&1; then
         tmux display-message "📌 Marked window ${SESSION}:${WINDOW}"
     else
         tmux display-message "❌ Failed to mark window ${SESSION}:${WINDOW}"
     fi
-fi
+fi