updated file picker thumbs size

ui/src/components/records/RecordFilePicker.svelte

@@ -261,7 +261,7 @@
                             {#each names as name}
                                 <button
                                     type="button"
-                                    class="thumb thumb-xl handle"
+                                    class="thumb handle"
                                     use:tooltip={name + "\n(record: " + record.id + ")"}
                                     class:thumb-warning={isSelected(record, name)}
                                     on:click|preventDefault={select(record, name)}

ui/src/scss/_file_picker.scss

@@ -75,11 +75,14 @@
     min-width: 0;
     min-height: 0;
     height: 100%;
+    .thumb {
+        --thumbSize: 14.6%;
+    }
 }
 
 .file-picker {
     display: flex;
-    height: 440px;
+    height: 420px;
     max-height: 100%;
     align-items: stretch;
     gap: var(--baseSpacing);