ui: New Logo + Navigation cleanup & Mobile UI/UX improvements (#24897)

* chore: `npm audit fix --force`

* feat: Update sidebar toggle to use Logo

* refactor: Clean up favicon SVG

* feat: Refactor logo component and implement theme-aware favicon generation

* feat: Add configurable padding to generated PWA assets

* test: Add unit tests for writeThemeFavicons

* refactor: Componentization

* feat: WIP

* feat: WIP

* feat: WIP

* feat: Mobile UI

* feat: add SEARCH route constant

* feat: create SidebarNavigationSearchResults component

* refactor: use SidebarNavigationSearchResults in conversation list

* feat: enable mobile search navigation in sidebar actions

* feat: add mobile search route and page

* fix: prevent sidebar overflow on mobile viewports

* fix: Mobile sidebar

* feat: Mobile Search WIP

* feat: Mobile WIP

* feat: Add PWA standalone detection and refine mobile UI

* feat: Improve mobile layout, sidebar handling, and chat scrolling

* feat: Improve mobile sidebar visibility and iOS Safari chat spacing

* fix: Disable auto-scroll on mobile

* chore: Linting

* fix: Wrong condition

* feat: Mobile chat scroll

* refactor: WIP

* fix: Desktop initial scroll always working again

* fix: Partial fix for mobile auto-scroll / initial scroll

* fix: Desktop auto-scroll on initial load and during streaming

* fix: Mobile scrolling logic

* refactor: Clean up

* feat: Improve start UI

* feat: Add `delay` to `fadeInView`

* feat: Auto-scroll button

* refactor: Cleanup

* refactor: Extract chat dialogs and alerts into dedicated component

* refactor: Reorganize ChatScreen component structure and initialization

* feat: Improve auto-scroll after sending message

* feat: UI improvements

* fix: Settings link

* feat: UI improvements

* fix: better UI spacing

* fix: Remove unneeded logic

* fix: Chat Processing Info UI rendering

* feat: Improve mobile UI

* feat: UI improvement

* fix: Conditional transition delay for Chat Messages based on route from

* fix: Delay mobile sidebar collapse for smoother transitions

* fix: Mobile scroll down button + sidebar pointer events

* fix: Mobile UI

* fix: Auto scrolling

* fix: Implement dynamic height calculations for chat auto-scroll positioning and UI elements

* fix: Retrieve `autofocus` for Chat Form textarea

* fix: Use proper class

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

* refactor: extract scroll-to-bottom logic and fix message send flow

* fix: update viewport store usage and remove conflicting autofocus

* feat: add accessibility labels to scroll down button

* fix: correct HTML structure in sidebar empty states

* fix: dynamically toggle processing info visibility

* chore: remove commented exports and fix formatting

* fix

* fix: Mobile Chat Form Add Action Sheet interactions

---------

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

tools/ui/src/lib/components/app/misc/Logo.svelte

@@ -0,0 +1,15 @@
+<script>
+	import logoMark from '$lib/assets/logo.svg?raw';
+	let { class: className = '', style = '' } = $props();
+</script>
+
+<div class={className} {style}>
+	{@html logoMark}
+</div>
+
+<style>
+	div :global(svg) {
+		width: var(--size, 1rem);
+		height: var(--size, 1rem);
+	}
+</style>

tools/ui/src/lib/components/app/misc/index.ts

@@ -51,3 +51,11 @@ export { default as KeyboardShortcutInfo } from './KeyboardShortcutInfo.svelte';
  * Preview button is shown only for HTML code blocks.
  */
 export { default as CodeBlockActions } from './CodeBlockActions.svelte';
+
+/**
+ * **Logo** - Application brand mark
+ *
+ * Inline SVG of the application logo. Accepts styling via the standard
+ * `class` and `style` props and inherits color via `currentColor`.
+ */
+export { default as Logo } from './Logo.svelte';