Fix css processor not working without theme dir

Processor will now automatically create the necessary directory to put
the css stylesheet into if the directory does not exist yet,
instead of failing to apply the theme.

theme_styles

@@ -54,8 +54,13 @@ save() {
 
   fix_placeholders
 
-  echo "$newsheet" >"$stylesheet"
+  if [ ! -f "$stylesheet" ]; then
+    mkdir -p "$(dirname "$stylesheet")" || dbg_msg $app error "Could not create theme folder for $stylesheet"
+    dbg_msg $app "Theme folder for $stylesheet did not exist yet so I created it"
+  fi
 
+  echo "$newsheet" >"$stylesheet"
+  dbg_msg $app "Saved theme to $stylesheet"
 }
 
 fix_placeholders() {