fix(ui): keep session close icon visible across views

apps/ui/src/styles/chat.css

@@ -507,23 +507,12 @@
 }
 
 .conversation-shell .sidebar-session-close {
-  display: inline-grid;
-  place-items: center;
   background: rgba(255, 255, 255, 0.9);
   box-shadow: inset 0 0 0 1px rgba(167, 209, 236, 0.72);
   color: #64809d;
   opacity: 0.58;
 }
 
-.conversation-shell .sidebar-session-close svg {
-  width: 14px;
-  height: 14px;
-  fill: none;
-  stroke: currentColor;
-  stroke-width: 1.8;
-  stroke-linecap: round;
-}
-
 .conversation-shell .sidebar-session-card:hover .sidebar-session-close,
 .conversation-shell .sidebar-session-card:focus-within .sidebar-session-close {
   opacity: 1;

apps/ui/src/styles/shell.css

@@ -299,6 +299,8 @@
 .sidebar-session-close {
   width: 24px;
   height: 24px;
+  display: inline-grid;
+  place-items: center;
   padding: 0;
   border: none;
   background: rgba(255, 255, 255, 0.76);
@@ -312,6 +314,15 @@
   cursor: pointer;
 }
 
+.sidebar-session-close svg {
+  width: 14px;
+  height: 14px;
+  fill: none;
+  stroke: currentColor;
+  stroke-width: 1.8;
+  stroke-linecap: round;
+}
+
 .sidebar-session-close:hover {
   color: var(--ui-color-primary-strong);
   background: #f1f4fb;