fix: animated card icon while the card is being initialized (v3.5.5)

The Card reader view showed the static nosim.svg while the status line said
"Card inserted - initializing..." (the header indicator was correct): the
2 s /api/status poll called pysimSetConnected(false) unconditionally in its
not-connected branch, ignoring the equipping / auto-equip-pending state.

- pysimCardStateUpdate(): one `initializing` flag (equipping || card_present
  && auto_equip) now drives both the status text and the icon
  (pysimSetConnected('spin') -> sim_anim.svg), matching the header indicator.
- pysimRefresh() ("Check status"): a reachable server is not an equipped card;
  the icon now follows connected / initializing / none instead of always
  showing the equipped icon.
- card_state.test.js: initializing states -> 'spin', cardless -> false, and
  the four Check-status combinations.

552 frontend / 421 Python green; version 3.5.5; sw cache simple-v258.

pysim_simple_server/server.py

@@ -29,7 +29,7 @@ from osmocom.tlv import BER_TLV_IE
 from osmocom.utils import rpad
 
 
-VERSION = '3.5.4'
+VERSION = '3.5.5'
 
 MAX_ENVELOPE_SEGMENTS = 5  # max SMS segments for outgoing C-APDU in ENVELOPE