Merge cntdown_timer from https://github.com/xMasterX/all-the-plugins

cntdown_timer/application.fam

@@ -13,4 +13,8 @@ App(
     order=20,
     fap_icon="cntdown_timer.png",
     fap_category="Tools",
+    fap_author="@0w0mewo",
+    fap_weburl="https://github.com/0w0mewo/fpz_cntdown_timer",
+    fap_version="1.2",
+    fap_description="Simple count down timer",
 )

cntdown_timer/views/countdown_view.c

@@ -129,6 +129,9 @@ static bool countdown_timer_view_on_input(InputEvent* event, void* ctx) {
                 handle_misc_cmd(hw, CountDownTimerToggleCounting);
             }
             break;
+        case InputKeyBack:
+            return false;
+            break;
 
         default:
             break;