chore: Enforce a few house rules via eslint (#2539)

src/scss/live-carousel.scss

@@ -60,7 +60,7 @@
   }
 }
 
-// Transmitting: breathe between a softer and a fuller glow — never fully fades,
+// Transmitting: breathe between a softer and a fuller glow -- never fully fades,
 // so the camera always reads as live.
 @keyframes transmitting-vignette-pulse {
   0%,

src/scss/pop-animation.scss

@@ -1,7 +1,7 @@
 // Shared "pop" enter/exit animation for overlays.
 //
-// `@include pop-in` auto-plays an entrance on render. `@include pop-out` —
-// typically guarded by an `.exiting` class — plays the matching exit; it is
+// `@include pop-in` auto-plays an entrance on render. `@include pop-out` --
+// typically guarded by an `.exiting` class -- plays the matching exit; it is
 // named `pop-out` so an `animationend` handler can detect exit completion and
 // unmount the element.