[Draft] Model library sidebar tab (#837)

* basic/empty model library sidebar tab

in-progress

* make it actually list out models

* extremely primitive search impl

* list out available folders

(incomplete list atm)

* load list dynamically

* nice lil loading icon

* that's not doing anything

* run autoformatter

* fix up some absolute vue shenanigans

* swap to pi-box

* is_fake_object

* i think apply the tailwind thingo

* trim '.safetensors' from end of display title

* oop

* after load, retain title if no new title is given

* is_load_requested to prevent duplication

* dirty initial model metadata load & preview

based on node preview code

* update model store tests

* initial image icon for model lib

* i hate this

* better empty spacer

* add api handler for '/models'

* load model folders list instead of hardcoding

* add a 'no content' placeholder for empty folders

* autoformat

* autoload model metadata

* error handling on metadata loading

* larger model icons

* click a model to spawn a node for it

* draggable model nodes

* add a setting for whether to autoload or not

* autoformat will be the death of me

* cleanup promise code

* make the model preview actually half-decent

* revert bad unchecked change

* put registration back

tests-ui/tests/store/modelStore.test.ts

@@ -69,7 +69,8 @@ describe('useModelStore', () => {
     const folderStore = await store.getModelsInFolderCached('checkpoints')
     const model = folderStore.models['noinfo.safetensors']
     await model.load()
-    expect(model.title).toBe('noinfo.safetensors')
+    expect(model.name).toBe('noinfo.safetensors')
+    expect(model.title).toBe('noinfo')
     expect(model.architecture_id).toBe('')
     expect(model.author).toBe('')
     expect(model.description).toBe('')