feat: redesign media browser UI

- Root folder cards with hero-style layout and SVG icons
- Full-width thumbnails with aspect-ratio grid items
- List view column headers (Name, Bitrate, Duration, Size)
- Modernized breadcrumb with pill segments and overflow handling
- Proper skeleton shimmer replacing emoji hourglass on thumbnails
- Pagination shows "Showing X-Y of Z" item count
- Refined hover effects, animations, and visual hierarchy
- Download button revealed on row hover in list view
- Type badges hidden by default, shown on hover
- Localized new keys in en.json and ru.json

media_server/static/js/browser.js

@@ -83,13 +83,13 @@ function showRootFolders() {
     revokeBlobUrls(container);
     if (viewMode === 'list') {
         container.className = 'browser-list';
-    } else if (viewMode === 'compact') {
-        container.className = 'browser-grid browser-grid-compact';
     } else {
-        container.className = 'browser-grid';
+        container.className = 'browser-grid browser-root-grid';
     }
     container.innerHTML = '';
 
+    const folderSvg = '<svg viewBox="0 0 24 24" width="24" height="24"><path fill="currentColor" d="M10 4H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V8c0-1.1-.9-2-2-2h-8l-2-2z"/></svg>';
+
     Object.entries(mediaFolders).forEach(([id, folder]) => {
         if (!folder.enabled) return;
         const unavailable = folder.available === false;
@@ -105,13 +105,13 @@ function showRootFolders() {
                 };
             }
             row.innerHTML = `
-                <div class="browser-list-icon">\u{1F4C1}</div>
+                <div class="browser-list-icon" style="color: var(--accent)">${folderSvg}</div>
                 <div class="browser-list-name">${escapeHtml(folder.label)}${unavailable ? ' <span class="folder-unavailable-badge">' + t('browser.unavailable') + '</span>' : ''}</div>
             `;
             container.appendChild(row);
         } else {
             const card = document.createElement('div');
-            card.className = 'browser-item' + unavailableClass;
+            card.className = 'browser-item browser-root-folder' + unavailableClass;
             if (!unavailable) {
                 card.onclick = () => {
                     currentFolderId = id;
@@ -120,7 +120,7 @@ function showRootFolders() {
             }
             card.innerHTML = `
                 <div class="browser-thumb-wrapper">
-                    <div class="browser-icon">\u{1F4C1}</div>
+                    <div class="browser-icon" style="color: var(--accent)">${folderSvg}</div>
                 </div>
                 <div class="browser-item-info">
                     <div class="browser-item-name">${escapeHtml(folder.label)}</div>
@@ -269,6 +269,19 @@ function renderBrowserList(items, container) {
         return;
     }
 
+    // Column header row
+    const header = document.createElement('div');
+    header.className = 'browser-list-header';
+    header.innerHTML = `
+        <span></span>
+        <span>${t('browser.list_header.name')}</span>
+        <span>${t('browser.list_header.bitrate')}</span>
+        <span>${t('browser.list_header.duration')}</span>
+        <span>${t('browser.list_header.size')}</span>
+        <span></span>
+    `;
+    container.appendChild(header);
+
     items.forEach((item, idx) => {
         const row = document.createElement('div');
         row.className = 'browser-list-item';
@@ -683,6 +696,7 @@ function renderPagination() {
     const nextBtn = document.getElementById('nextPage');
     const pageInput = document.getElementById('pageInput');
     const pageTotal = document.getElementById('pageTotal');
+    const showingEl = document.getElementById('paginationShowing');
 
     const totalPages = Math.ceil(totalItems / itemsPerPage);
     const currentPage = Math.floor(currentOffset / itemsPerPage) + 1;
@@ -697,6 +711,13 @@ function renderPagination() {
     pageInput.max = totalPages;
     pageTotal.textContent = `/ ${totalPages}`;
 
+    // "Showing X-Y of Z"
+    if (showingEl) {
+        const from = currentOffset + 1;
+        const to = Math.min(currentOffset + itemsPerPage, totalItems);
+        showingEl.textContent = t('browser.showing_items', { from, to, total: totalItems });
+    }
+
     prevBtn.disabled = currentPage === 1;
     nextBtn.disabled = currentPage === totalPages;
 }