Fix lint issues

Signed-off-by: Carl Schwan <carl@carlschwan.eu>

src/components/Composer/PreviewGrid.vue

@@ -54,7 +54,7 @@ export default {
 	},
 	methods: {
 		deletePreview(index) {
-			$emit('deleted', index)
+			this.$emit('deleted', index)
 		},
 	},
 }

src/components/TimelineEntry.vue

@@ -159,7 +159,6 @@ export default {
 		}
 	}
 
-
 	.icon-boost {
 		display: inline-block;
 		vertical-align: middle;