ui: content-sized label column in decoded field tables (v2.7.14)

The decoded view used a fixed 10rem right-aligned label column, so short
labels pushed the values ~168px to the right — for transparent files the
block looked like indented record data.  efRenderFieldsHtml now uses a
grid with grid-template-columns: max-content 1fr: labels stay right
aligned and values stay aligned, but the column is only as wide as the
widest label of the block.  Applies to the file manager decoded view and
the snapshot Decoded block (transparent and per-record fields alike).

- tests: efRenderFieldsHtml markup (grid, no w-40) and decoded view.

pysim_simple_server/server.py

@@ -26,7 +26,7 @@ from osmocom.tlv import BER_TLV_IE
 from osmocom.utils import rpad
 
 
-VERSION = '2.7.13'
+VERSION = '2.7.14'
 
 MAX_ENVELOPE_SEGMENTS = 5  # max SMS segments for outgoing C-APDU in ENVELOPE