fix(nodes,ui): optional metadata

- Make all metadata items optional. This will reduce errors related to metadata not being provided when we update the backend but old queue items still exist
- Fix a bug in t2i adapter metadata handling where it checked for ip adapter metadata instaed of t2i adapter metadata
- Fix some metadata fields that were not using `InputField`

invokeai/frontend/web/src/features/nodes/util/graphBuilders/addT2IAdapterToLinearGraph.ts

@@ -86,7 +86,7 @@ export const addT2IAdaptersToLinearGraph = (
 
       graph.nodes[t2iAdapterNode.id] = t2iAdapterNode as T2IAdapterInvocation;
 
-      if (metadataAccumulator?.ipAdapters) {
+      if (metadataAccumulator?.t2iAdapters) {
         // metadata accumulator only needs a control field - not the whole node
         // extract what we need and add to the accumulator
         const t2iAdapterField = omit(t2iAdapterNode, [