Merge pull request #710 from Brumi-2021/Increase_freq_step_resolution

Very minor change , add 10 & 50Hz freq. steps , SSB  in HF and Qo-100_sat_#669

firmware/application/ui/ui_receiver.hpp

@@ -247,6 +247,8 @@ public:
 			parent_pos,
 			5,
 			{
+				{ "   10",       10 },  /* Fine tuning SSB voice pitch,in HF and QO-100 sat #669 */
+				{ "   50",       50 },	/* added 50Hz/10Hz,but we do not increase GUI digit decimal */
 				{ "  100",      100 },
 				{ "  1k ",     1000 },
 				{ "  3k ",     3000 },	/* Approximate SSB bandwidth */