fix(editor): Fix sidebar button styling (#6138)

* fix(editor): Fix sidebar button styling
* Making offset equal for both button versions

packages/editor-ui/src/components/MainSidebar.vue

@@ -9,13 +9,12 @@
 	>
 		<div
 			id="collapse-change-button"
-			:class="{
-				['clickable']: true,
-				[$style.sideMenuCollapseButton]: true,
-				[$style.expandedButton]: !isCollapsed,
-			}"
+			:class="['clickable', $style.sideMenuCollapseButton]"
 			@click="toggleCollapse"
-		></div>
+		>
+			<n8n-icon v-if="isCollapsed" icon="chevron-right" size="xsmall" class="ml-5xs" />
+			<n8n-icon v-else icon="chevron-left" size="xsmall" class="mr-5xs" />
+		</div>
 		<n8n-menu :items="mainMenuItems" :collapsed="isCollapsed" @select="handleSelect">
 			<template #header>
 				<div :class="$style.logo">
@@ -546,39 +545,16 @@ export default mixins(
 	z-index: 999;
 	display: flex;
 	justify-content: center;
-	align-items: flex-end;
+	align-items: center;
 	color: var(--color-text-base);
 	background-color: var(--color-foreground-xlight);
 	width: 20px;
 	height: 20px;
 	border: var(--border-width-base) var(--border-style-base) var(--color-foreground-base);
-	text-align: center;
 	border-radius: 50%;
 
-	&::before {
-		display: block;
-		position: relative;
-		left: px;
-		top: -2.5px;
-		transform: rotate(270deg);
-		content: '\e6df';
-		font-family: element-icons;
-		font-size: var(--font-size-2xs);
-		font-weight: bold;
-		color: var(--color-text-base);
-	}
-
-	&.expandedButton {
-		&::before {
-			transform: rotate(90deg);
-			left: 0px;
-		}
-	}
-
 	&:hover {
-		&::before {
-			color: var(--color-primary-shade-1);
-		}
+		color: var(--color-primary-shade-1);
 	}
 }