feat(editor): Main navigation redesign (#4144)

* refactor(editor): N8N-4540 Main navigation layout rework (#4060)

* ✨ Implemented new editor layout using css grid

* ✨ Reworking main navigation layout, migrating some styling to css modules

* ✨ Reworking main sidebar layout and responsiveness

* 💄 Minor type update

* ✨ Updated editor grid layout so empty cells are collapsed (`fit-content`), fixed updates menu items styling

* ✨ Implemented new user area look & feel in main sidebar

* 💄 Adjusting sidebar bottom padding when user area is not shown

* 💄 CSS cleanup/refactor + minor vue refactoring

* ✨ Fixing overscoll issue in chrome and scrolling behaviour of the content view

* 👌 Addressing review feedback

* ✨ Added collapsed and expanded versions of n8n logo

* ✨ Updating infinite scrolling in templates view to work with the new layout

* 💄 Updating main sidebar expanded width and templates view left margin

* 💄 Updating main content height

* 💄 Adding global styles for scrollable views with centered content, minor updates to user area

* ✨ Updating zoomToFit logic, lasso select box position and new nodes positioning

* ✨ Fixing new node drop position now that mouse detection has been adjusted

* 👌 Updating templates view scroll to top logic and responsive padding, aligning menu items titles

* 💄 Moving template layout style from global css class to component level

* ✨ Moved 'Workflows'  menu to node view header. Added new dropdown component for user area and the new WF menu

* 💄 Updating disabled states in new WF menu

* 💄 Initial stab at new sidebar styling

* ✨ Finished main navigation restyling

* ✨ Updating `zoomToFit` and centering logic

* ✨ Adding updates menu item to settings sidebar

* 💄 Adding updates item to the settings sidebar and final touches on main sidebar style

* 💄 Removing old code & refactoring

* 💄 Minor CSS tweaks

* 💄 Opening credentials modal on sidebar menu item click. Minor CSS updates

* 💄 Updating sidebar expand/collapse animation

* 💄 Few more refinements of sidebar animation

* 👌 Addressing code review comments

* ✨ Moved ActionDropdown component to design system

* 👌 Fixing bugs reported during code review and testing

* 👌 Addressing design review comments for the new sidebar

* ✔️ Updating `N8nActionDropdown` component tests

* ✨ Remembering scroll position when going back to templates list

* ✨ Updating zoomToFit logic to account for footer content

* 👌 Addressing latest sidebar review comments

* 👌 Addressing main sidebar product review comments

* 💄 Updating css variable names after vite merge

* ✔️ Fixing linting errors in the design system

* ✔️ Fixing `element-ui` type import

* 👌 Addressing the code review comments.

* ✨ Adding link to new credentials view, removed old modal

* 💄 Updating credentials view responsiveness and route highlight handling

* 💄 Adding highlight to workflows submenu when on new workflow page

* 💄 Updated active submenu text color

packages/editor-ui/src/views/TemplatesSearchView.vue

@@ -320,23 +320,34 @@ export default mixins(genericHelpers, debounceHelper).extend({
 				this.updateSearchTracking(search, categories);
 			}
 		},
-		scrollToTop() {
+		scrollTo(position: number, behavior: ScrollBehavior = 'smooth') {
 			setTimeout(() => {
-				window.scrollTo({
-					top: 0,
-					behavior: 'smooth',
-				});
-			}, 100);
+				const contentArea = document.getElementById('content');
+				if (contentArea) {
+					contentArea.scrollTo({
+						top: position,
+						behavior,
+					});
+				}
+			}, 0);
 		},
 	},
 	watch: {
 		workflows(newWorkflows) {
 			if (newWorkflows.length === 0) {
-				this.scrollToTop();
+				this.scrollTo(0);
 			}
 		},
 	},
 	beforeRouteLeave(to, from, next) {
+		const contentArea = document.getElementById('content');
+		if (contentArea) {
+			// When leaving this page, store current scroll position in route data
+			if (this.$route.meta && this.$route.meta.setScrollPosition && typeof this.$route.meta.setScrollPosition === 'function') {
+				this.$route.meta.setScrollPosition(contentArea.scrollTop);
+			}
+		}
+
 		this.trackSearch();
 		next();
 	},
@@ -345,6 +356,13 @@ export default mixins(genericHelpers, debounceHelper).extend({
 		this.loadCategories();
 		this.loadWorkflowsAndCollections(true);
 		this.$store.dispatch('users/showPersonalizationSurvey');
+
+		setTimeout(() => {
+			// Check if there is scroll position saved in route and scroll to it
+			if (this.$route.meta && this.$route.meta.scrollOffset > 0) {
+				this.scrollTo(this.$route.meta.scrollOffset, 'auto');
+			}
+		}, 100);
 	},
 	async created() {
 		if (this.$route.query.search && typeof this.$route.query.search === 'string') {