GUI: Terminal command: minor improvements

* Use mono font for terminal command input
* Recognize 'exit' command (go to main page)

Change-Id: I5f383cd8d19959a49d2ae0b18f839b86e4145693
diff --git a/gui/devices/landscape/res/landscape.xml b/gui/devices/landscape/res/landscape.xml
index f6fb189..aaa509e 100644
--- a/gui/devices/landscape/res/landscape.xml
+++ b/gui/devices/landscape/res/landscape.xml
@@ -3371,6 +3371,7 @@
 				<condition var1="tw_terminal_state" var2="0" />
 				<placement x="%input_x%" y="%terminal_text_y%" w="%terminal_input_width%" h="%input_height%" placement="0" />
 				<text>%tw_terminal_command%</text>
+				<font resource="fixed" color="%text_color%" />
 				<data name="tw_terminal_command" />
 				<restrict minlen="1" />
 				<action function="terminalcommand">%tw_terminal_command%</action>