Update the hourly report template to trim excess whitespace when alert and/or preciptiation sections are omitted

internal/reporttemplate/reporttemplate_test.go

@@ -730,6 +730,17 @@ func TestRenderHourlyOmitsConditionalSectionsForClearWeather(t *testing.T) {
 			t.Fatalf("clear render includes %q:\n%s", unwanted, text)
 		}
 	}
+	if strings.Contains(text, "\n\n\n") {
+		t.Fatalf("clear render includes excess blank lines:\n%s", text)
+	}
+	for _, want := range []string{
+		"Currently, it is 72°F and cloudy.\n\n## Hourly Forecast",
+		"- **9:00 AM:** 71°F and mostly cloudy.\n\n## Forecast Discussion",
+	} {
+		if !strings.Contains(text, want) {
+			t.Fatalf("clear render missing spacing %q:\n%s", want, text)
+		}
+	}
 }
 
 func TestRenderHourlyUsesSharedOpenEndedPrecipitationTiming(t *testing.T) {