Fix keybinding cheatsheets with regard to pipe characters in key or description

The "Cycle pagers" command wasn't rendered correctly, because it's bound to '|'
by default, but this was taked as a table column delimiter. Fix this by escaping
the pipe character.

A similar thing could happen for the description or tooltip (and did in fact,
for a tooltip in the russion translation), so escape those too just to be sure.

pkg/cheatsheet/generate.go

@@ -225,6 +225,11 @@ func formatBinding(binding *types.Binding) string {
 	// Replace newlines with <br> tags for proper markdown table formatting
 	tooltip := strings.ReplaceAll(binding.Tooltip, "\n", "<br>")
 
+	// Escape pipe characters to avoid breaking the table format
+	action = strings.ReplaceAll(action, `|`, `\|`)
+	description = strings.ReplaceAll(description, `|`, `\|`)
+	tooltip = strings.ReplaceAll(tooltip, `|`, `\|`)
+
 	// Use backticks for keyboard keys. Two backticks are needed with an inner space
 	//  to escape a key that is itself a backtick.
 	return fmt.Sprintf("| `` %s `` | %s | %s |\n", action, description, tooltip)