Fix character-specific theme not falling back to current theme (#207)

It is only logical to say that the user, when not specifying any specific speedline or similar in the theme, then the current theme should be checked first rather than the default theme.

Co-authored-by: Cents02 <Cents02@Cents0.me>

src/text_file_functions.cpp

@@ -641,7 +641,7 @@ QString AOApplication::get_char_shouts(QString p_char)
 {
   QString f_result = read_char_ini(p_char, "shouts", "Options");
   if (f_result == "")
-    return "default";
+    return current_theme; // The default option is the current theme.
   return f_result;
 }