Implement more UX and cards for other distros

Assets/UI/CollectionScreen.uxml

@@ -6,8 +6,8 @@
             </ui:VisualElement>
             <ui:VisualElement class="screen-frame-content">
                 <ui:VisualElement class="collection-actions">
-                    <ui:Button name="CollectionUnitsButton" text="units" class="collection-tab" />
-                    <ui:Button name="CollectionCardsButton" text="cards" class="collection-tab" />
+                    <ui:Button name="CollectionUnitsButton" text="units" focusable="false" class="collection-tab" />
+                    <ui:Button name="CollectionCardsButton" text="cards" focusable="false" class="collection-tab" />
                 </ui:VisualElement>
                 <ui:VisualElement name="CollectionContent" class="collection-shell">
                     <ui:ScrollView name="CollectionList" class="collection-list" />

Assets/UI/MainMenu.uss

@@ -635,6 +635,22 @@ Button {
     margin-bottom: 12px;
 }
 
+.detail-section-title {
+    color: var(--kp-primary);
+    -unity-font-style: bold;
+    margin-top: 8px;
+    margin-bottom: 4px;
+    white-space: normal;
+}
+
+.flavor-text,
+.package-flavor {
+    color: var(--kp-muted);
+    -unity-font-style: italic;
+    white-space: normal;
+    margin-bottom: 10px;
+}
+
 .package-list {
     min-width: 0;
     flex-grow: 1;
@@ -724,6 +740,11 @@ Button {
     margin-top: 2px;
 }
 
+.package-flavor {
+    margin-left: 34px;
+    margin-top: 2px;
+}
+
 .run-readout {
     min-height: 110px;
     max-height: 128px;