Various UI/UX changes

[xMasterX]

What's new

• text spacing reduced from 4px to 3px
• some text was replaced
• fix nfc slix unlock led not blinking

Verification

• See text being 3px spaced
• Try slix unlock menu in nfc

Checklist (For Reviewer)

• PR has description of feature/bug or link to Confluence/Jira task
• Description contains actions to verify feature/bugfix
• I've built this code, uploaded it to the device and verified feature/bugfix

[chrisdebian]

Split this into what I could verify: the elements.c/widget_element_text_scroll.c line-spacing change (font_height - 1) is safe — this display's fonts are always well above 1px, so no underflow risk in the size_t arithmetic, and it's applied consistently across all three multiline-text helpers plus the widget scroll leading, not a stray one-off. The SLIX-unlock blink notification addition matches an existing pattern already used identically elsewhere in the NFC app (e.g. nfc_scene_detect.c's nfc_blink_stop/sequence_blink_start_yellow on enter/exit) — it's filling a real scene-symmetry gap rather than introducing new behaviour, though I can't confirm the actual blink timing on-device. Didn't review the two cosmetic string tweaks specifically, low risk either way.