Fix pod logs dock tab (#4738)

- Move all dependencies into a transient LogsViewModel

- Remove dependencies on dockStore.selectedTab

- Make all bindings as late as possible, as per mobx rules

Signed-off-by: Sebastian Malton <sebastian@malton.name>

src/common/utils/collection-functions.ts

@@ -25,3 +25,14 @@ export function getOrInsert<K, V>(map: Map<K, V>, key: K, value: V): V {
 export function getOrInsertMap<K, MK, MV>(map: Map<K, Map<MK, MV>>, key: K): Map<MK, MV> {
   return getOrInsert(map, key, new Map<MK, MV>());
 }
+
+/**
+ * Like `getOrInsert` but with delayed creation of the item
+ */
+export function getOrInsertWith<K, V>(map: Map<K, V>, key: K, value: () => V): V {
+  if (!map.has(key)) {
+    map.set(key, value());
+  }
+
+  return map.get(key);
+}