Fix card hover/active states

Signed-off-by: Julius Härtl <jus@bitgrid.net>

src/components/board/Stack.vue

@@ -282,7 +282,6 @@ export default {
 		margin-right: -10px;
 		margin-top: 0;
 		margin-bottom: 3px;
-		background-color: var(--color-main-background-translucent);
 		cursor: grab;
 
 		h3, form {

src/components/cards/CardItem.vue

@@ -160,10 +160,6 @@ export default {
 	@import './../../css/animations';
 	@import './../../css/variables';
 
-	.card:hover {
-		box-shadow: 0 0 5px 1px var(--color-box-shadow);
-	}
-
 	.card {
 		transition: box-shadow 0.1s ease-in-out;
 		box-shadow: 0 0 2px 0 var(--color-box-shadow);
@@ -180,9 +176,12 @@ export default {
 			border: 2px solid var(--color-border);
 		}
 
-		&.current-card {
+		&:hover {
 			box-shadow: 0 0 5px 0 var(--color-box-shadow);
 		}
+		&.current-card {
+			box-shadow: 0 0 5px 1px var(--color-box-shadow);
+		}
 
 		.card-upper {
 			display: flex;