Style: Larger Node Text, More Sidebar Alignment (#7223)

## Summary

See what it looks like. How it feels. What do you think?

- Also was able to unify down to a single SearchBox component.

## Changes

- Bigger widget / slot labels
- Smaller header text
- Unified Searchboxes across sidebar tabs

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7223-Style-prototype-with-larger-node-text-2c36d73d365081f8a371c86f178fa1ff)
by [Unito](https://www.unito.io)

---------

Co-authored-by: github-actions <github-actions@github.com>

src/components/sidebar/tabs/SidebarTabTemplate.vue

@@ -5,7 +5,7 @@
   >
     <div class="comfy-vue-side-bar-header flex flex-col gap-2">
       <Toolbar
-        class="min-h-15.5 bg-transparent rounded-none border-x-0 border-t-0 px-2 2xl:px-4"
+        class="min-h-16 bg-transparent rounded-none border-x-0 border-t-0 px-2 2xl:px-4"
       >
         <template #start>
           <span class="truncate font-bold" :title="props.title">