refactor(shell): Improve shell command naming and output formatting

- Renamed shell commands in  and  to be shorter
  and remove underscores (e.g.,  to ).
- Consolidated get functions into a single show command for both valve
  and Modbus settings (e.g., , ).
- Adjusted output formatting for show commands to be right-aligned and
  remove horizontal lines for better readability.
- Fixed missing getter function implementations in  and their
  declarations in .
- Ensured  is correctly selected in
  to make valve shell commands available.

software/lib/valve/valve.c

@@ -199,6 +199,16 @@ uint16_t valve_get_max_close_time(void)
 	return max_closing_time_s;
 }
 
+uint16_t valve_get_end_current_threshold_open(void)
+{
+	return end_current_threshold_open_ma;
+}
+
+uint16_t valve_get_end_current_threshold_close(void)
+{
+	return end_current_threshold_close_ma;
+}
+
 int32_t valve_get_opening_current(void)
 {
 	int32_t current;