some minor cleanups

* Suppress warnings about conflicting library names in platformio.ini by
  explicitly picking the libraries by id that we want.
* fix unused static function warning by making it not static ;)
* declare arduino-fsm as dependency for BluetoothOTA. Hopefully this
  fixes the CI builds?

Tested: `pio run` builds.

src/screen.cpp

@@ -510,7 +510,7 @@ void Screen::setOn(bool on)
     }
 }
 
-static void screen_print(const char *text, uint8_t x, uint8_t y, uint8_t alignment)
+void screen_print(const char *text, uint8_t x, uint8_t y, uint8_t alignment)
 {
     DEBUG_MSG(text);
 
@@ -709,4 +709,4 @@ void Screen::onPress()
         targetFramerate = TRANSITION_FRAMERATE;
         ui.setTargetFPS(targetFramerate);
     }
-}
+}