add Cards tab with localStorage persistence, export/import, SP card selector dropdown

style.css

@@ -663,6 +663,10 @@ video {
   display: flex;
 }
 
+.table {
+  display: table;
+}
+
 .grid {
   display: grid;
 }
@@ -847,6 +851,10 @@ video {
   overflow: auto;
 }
 
+.overflow-x-auto {
+  overflow-x: auto;
+}
+
 .overflow-y-auto {
   overflow-y: auto;
 }
@@ -892,6 +900,11 @@ video {
   border-top-width: 1px;
 }
 
+.border-gray-100 {
+  --tw-border-opacity: 1;
+  border-color: rgb(243 244 246 / var(--tw-border-opacity, 1));
+}
+
 .border-gray-200 {
   --tw-border-opacity: 1;
   border-color: rgb(229 231 235 / var(--tw-border-opacity, 1));
@@ -1049,6 +1062,10 @@ video {
   padding-top: 0.75rem;
 }
 
+.text-left {
+  text-align: left;
+}
+
 .text-center {
   text-align: center;
 }