Show sweep progress bar on spectrum analyzer screen only

* Hide progress bar in file browser
* Hide progress bar in form/fullscreen menu
* Do not clear progress bar when it was not drawn. This is the case with file browser when previous or next page button is held but not released

sa_core.c

@@ -5095,7 +5095,8 @@ static bool sweep(bool break_on_operation)
 #endif
   }
 
-  bool show_bar = ( MODE_INPUT(setting.mode) ||  setting.frequency_step != 0 || setting.level_sweep != 0.0 ? true : false);
+  bool show_bar = ( MODE_INPUT(setting.mode) ||  setting.frequency_step != 0 || setting.level_sweep != 0.0 )
+    && !isFullScreenMode() && !current_menu_is_form();
 
 #if 0
 #ifdef TINYSA4
@@ -5205,7 +5206,7 @@ static bool sweep(bool break_on_operation)
 #ifdef TINYSA4
           progress_bar &&
 #endif
-          setting.actual_sweep_time_us > ONE_SECOND_TIME /* && MODE_INPUT(setting.mode) */) {
+          show_bar && setting.actual_sweep_time_us > ONE_SECOND_TIME /* && MODE_INPUT(setting.mode) */) {
         ili9341_set_background(LCD_BG_COLOR);
         ili9341_fill(OFFSETX, CHART_BOTTOM+1, WIDTH, 1);                    // Erase progress bar
 #ifdef __SWEEP_RESTART__