[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

src/components/common/TreeExplorerTreeNode.vue

@@ -10,8 +10,8 @@
     ]"
     ref="container"
   >
-    <div class="node-content truncate">
-      <span class="node-label text-sm">
+    <div class="node-content">
+      <span class="node-label">
         <slot name="before-label" :node="props.node"></slot>
         <EditableText
           :modelValue="node.label"