Minor fixes to resources and UI

app/src/main/res/values/strings.xml

@@ -44,7 +44,7 @@
     <string name="timer_zero" translatable="false">00:00:00</string>
     <string name="timer_placeholder" translatable="false">-</string>
 
-    <string name="passes_error">No satellites were selected</string>
+    <string name="passes_error">No upcoming passes</string>
 
     <string name="pass_satName" translatable="false">%s</string>
     <string name="pass_satId" translatable="false">Id:%d</string>