ui: improve search result action buttons styling and behavior

- Remove transform transitions and animations from action buttons
- Restyle buttons with consistent sizing, colors, and hover states
- Convert anchor tags to buttons with proper type attributes
- Add click handlers for opening links in new tabs with security attributes
- Clear subfolder list when repopulating options

web/css/linker-main.css

@@ -229,7 +229,7 @@
     border-radius: 0;
     padding: var(--ml-spacing-10) var(--ml-spacing-12);
     margin-bottom: var(--ml-spacing-4);
-    transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
+    transition: background 0.18s ease, box-shadow 0.18s ease;
     box-shadow: inset 0 0 0 1px rgba(255,255,255,0.018);
     font-family: "Segoe UI Variable", "Segoe UI", sans-serif;
 }
@@ -237,7 +237,6 @@
     background: var(--ml-card-bg-alt);
 }
 .ml-card:hover {
-    transform: translateY(-1px);
     box-shadow:
         inset 0 0 0 1px rgba(255,255,255,0.05),
         0 10px 24px rgba(0,0,0,0.14);
@@ -853,20 +852,53 @@
 }
 .ml-search-result-actions {
     display: flex;
+    align-items: center;
     justify-content: flex-end;
     gap: 6px;
+    min-height: 24px;
 }
-.ml-search-result-action-btn {
+#model-linker-modal .ml-search-result-action-btn {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
     width: 24px;
+    height: 24px;
     min-width: 24px;
     min-height: 24px;
+    max-width: 24px;
+    flex: 0 0 24px;
+    margin: 0;
     padding: 0;
+    border: 1px solid rgba(255,255,255,0.1);
     border-radius: 7px;
+    background: rgba(255,255,255,0.03);
+    color: var(--ml-text);
+    box-shadow: inset 0 1px 0 rgba(255,255,255,0.02);
+    box-sizing: border-box;
+    cursor: pointer;
+    appearance: none;
+    -webkit-appearance: none;
+    line-height: 1;
+    font-family: inherit;
+    font-size: 0;
+    font-weight: 600;
+    text-decoration: none;
+    vertical-align: middle;
+    white-space: nowrap;
+    overflow: hidden;
+    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
 }
-.ml-search-result-action-btn svg {
+#model-linker-modal .ml-search-result-action-btn:hover:not(:disabled) {
+    background: rgba(255,255,255,0.05);
+    border-color: rgba(255,255,255,0.16);
+    transform: none;
+}
+#model-linker-modal .ml-search-result-action-btn svg {
     width: 13px;
     height: 13px;
     display: block;
+    flex: 0 0 13px;
+    pointer-events: none;
 }
 .ml-search-progress-list {
     display: grid;

web/linker.js

@@ -654,7 +654,7 @@ class LinkerManagerDialog extends ComfyDialog {
             let actions = '';
             if (downloadUrl) {
                 actions += `
-                    <button class="search-download-btn ml-btn ml-btn-secondary ml-btn-sm ml-search-result-action-btn"
+                    <button type="button" class="search-download-btn ml-search-result-action-btn"
                         title="Download"
                         aria-label="Download ${this.escapeHtml(downloadFilename)}"
                         data-url="${this.escapeHtml(downloadUrl)}"
@@ -664,12 +664,11 @@ class LinkerManagerDialog extends ComfyDialog {
             }
             if (openUrl) {
                 actions += `
-                    <a href="${this.escapeHtml(openUrl)}"
-                        target="_blank"
-                        rel="noopener noreferrer"
-                        class="ml-btn ml-btn-secondary ml-btn-sm ml-search-result-action-btn"
+                    <button type="button"
+                        class="search-open-page-btn ml-search-result-action-btn"
                         title="Open model page"
-                        aria-label="Open model page">${getSvgIcon('externalLink')}</a>
+                        aria-label="Open model page"
+                        data-url="${this.escapeHtml(openUrl)}">${getSvgIcon('externalLink')}</button>
                 `;
             }
             if (!actions) {
@@ -2454,7 +2453,8 @@ class LinkerManagerDialog extends ComfyDialog {
             renderOptions(categoryListEl, options, (value, label) => {
                 this.setDropdownValue(categoryEl, value, label);
                 subfolderEl.value = '';
-                populateSubfolderOptions('');
+                listEl.innerHTML = '';
+                listEl.style.display = 'none';
                 this.applySuggestedCivitaiSubfolder(missing, categoryEl, subfolderEl);
             });
         };
@@ -5234,6 +5234,19 @@ class LinkerManagerDialog extends ComfyDialog {
                 this.downloadFromSearch(missing, url, filename, category, btn);
             });
         });
+
+        const openPageBtns = container.querySelectorAll('.search-open-page-btn');
+        openPageBtns.forEach(btn => {
+            btn.addEventListener('click', () => {
+                const url = btn.dataset.url;
+                if (!url) return;
+
+                const opened = window.open(url, '_blank', 'noopener,noreferrer');
+                if (opened) {
+                    opened.opener = null;
+                }
+            });
+        });
     }
 
     wireDownloadSearchPanel(container, missing) {