Sync minimap lane scrolling fixes

Author: rore

tools/minimap/ui/styles.css

@@ -588,7 +588,10 @@ h3 {
 .board-column {
   display: grid;
   gap: 8px;
+  grid-template-rows: auto minmax(0, 1fr);
   min-width: 0;
+  min-height: 0;
+  height: 100%;
   scroll-snap-align: start;
 }
 
@@ -632,6 +635,13 @@ h3 {
   display: grid;
   gap: 8px;
   min-height: 120px;
+  min-width: 0;
+  min-height: 0;
+  height: 100%;
+  max-height: 100%;
+  overflow-y: auto;
+  overscroll-behavior: contain;
+  align-content: start;
   padding: 4px;
   border-radius: 18px;
 }
@@ -1315,6 +1325,21 @@ textarea {
     overflow: visible;
   }
 
+  .layout[data-board-layout="columns"] .board-groups {
+    overflow: visible;
+  }
+
+  .layout[data-board-layout="columns"] .board-columns,
+  .layout[data-board-layout="columns"] .board-column,
+  .layout[data-board-layout="columns"] .board-column-list {
+    height: auto;
+    max-height: none;
+  }
+
+  .layout[data-board-layout="columns"] .board-column-list {
+    overflow: visible;
+  }
+
   .mobile-nav-button {
     display: inline-flex;
     align-items: center;
@@ -2247,6 +2272,16 @@ body[data-setup-mode="true"] .setup-side-stack {
   max-height: calc(100vh - 36px);
 }
 
+.layout[data-board-layout="columns"] .board-groups {
+  overflow: hidden;
+}
+
+.layout[data-board-layout="columns"] .board-columns {
+  min-height: 100%;
+  height: 100%;
+  align-items: stretch;
+}
+
 .layout[data-board-layout="columns"] .editor-panel {
   box-shadow: 0 28px 60px rgba(18, 30, 58, 0.24);
 }