refactor(frontend): EmojiPickerの冗長なCSSを一部簡略化 (#16717)

packages/frontend/src/components/MkEmojiPicker.vue

@@ -539,46 +539,44 @@ defineExpose({
 	}
 
 	&.w1 {
-		width: calc((var(--eachSize) * 5) + (#{$pad} * 2));
+		--columns: 5;
-		--columns: 1fr 1fr 1fr 1fr 1fr;
 	}
 
 	&.w2 {
-		width: calc((var(--eachSize) * 6) + (#{$pad} * 2));
+		--columns: 6;
-		--columns: 1fr 1fr 1fr 1fr 1fr 1fr;
 	}
 
 	&.w3 {
-		width: calc((var(--eachSize) * 7) + (#{$pad} * 2));
+		--columns: 7;
-		--columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
 	}
 
 	&.w4 {
-		width: calc((var(--eachSize) * 8) + (#{$pad} * 2));
+		--columns: 8;
-		--columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
 	}
 
 	&.w5 {
-		width: calc((var(--eachSize) * 9) + (#{$pad} * 2));
+		--columns: 9;
-		--columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
 	}
 
 	&.h1 {
-		height: calc((var(--eachSize) * 4) + (#{$pad} * 2));
+		--rows: 4;
 	}
 
 	&.h2 {
-		height: calc((var(--eachSize) * 6) + (#{$pad} * 2));
+		--rows: 6;
 	}
 
 	&.h3 {
-		height: calc((var(--eachSize) * 8) + (#{$pad} * 2));
+		--rows: 8;
 	}
 
 	&.h4 {
-		height: calc((var(--eachSize) * 10) + (#{$pad} * 2));
+		--rows: 10;
 	}
 
+	width: calc((var(--eachSize) * var(--columns)) + (#{$pad} * 2));
+	height: calc((var(--eachSize) * var(--rows)) + (#{$pad} * 2));
+
 	&.asDrawer {
 		width: 100% !important;
 
@@ -593,7 +591,7 @@ defineExpose({
 
 				> .body {
 					display: grid;
-					grid-template-columns: var(--columns);
+					grid-template-columns: repeat(var(--columns), 1fr);
 					font-size: 30px;
 
 					> .config {
@@ -635,7 +633,7 @@ defineExpose({
 			::v-deep(section) {
 				> .body {
 					display: grid;
-					grid-template-columns: var(--columns);
+					grid-template-columns: repeat(var(--columns), 1fr);
 					font-size: 30px;
 
 					> .item {