Bump DISPLAY_MAIN_CONTENT_TOP_PAD 4 -> 8 so the DMR RX talkgroup/talker (and the
FM contact / CTCSS / squelch info sharing that strip) no longer crowds the S-meter
label row. Contact moves from y=28 to y=32, leaving a clear gap below the labels.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>