fix(ui): mesh/web5/apps layout, modal, and search UX fixes

- Mesh: fix 920-1280px bottom margin (phantom mobile-nav reservation
  leaking into the desktop-sidebar range), let the mesh view scale to
  full width on wide screens instead of capping at 1600px, and make the
  Device panel collapsible on desktop (previously mobile-only)
- Search/controller-nav: a global gamepad/keyboard-nav feature was
  auto-clicking "the next button in the DOM" on Enter in any text input,
  which cleared the mesh peer search and popped the sideload modal from
  the App Store/My Apps search boxes. Opt out via data-controller-no-submit
  on all filter inputs; bump the mesh clear button's touch target
- Modals: several (sideload, credential, Lightning channel open, identity
  create) used ad-hoc blue buttons and non-fullscreen backdrops that only
  covered the main content area, not the sidebar. Teleport them to body,
  unify backdrop/button theming to the dark+orange convention, fix the
  sideload modal's square bottom corners on desktop, and standardize
  close buttons to the ghost-icon style
- Web5: remove the redundant/dead "Messages" tab from Connected Nodes
  (its deep-link was unreachable dead code); fix the "view message" toast
  to actually open the Archipelago channel instead of silently failing to
  match a LoRa peer; make identity rows responsive via a container query
  (viewport-based breakpoints don't work in the page's 2-column grid) and
  right-justify their action icons; collapse DID/DHT/Wallet/Nostr/Connected
  Nodes by default on mobile
- Apps/App Store: match the search bar and sideload button's height,
  padding, and background to the mode-switcher tabs beside them
- Mesh chat: keep the compose input focused after sending

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

neode-ui/src/views/federation/NodeDetailModal.vue

@@ -1,4 +1,5 @@
 <template>
+  <Teleport to="body">
   <div v-if="node" class="fixed inset-0 z-50 flex items-center justify-center p-4 bg-black/60 backdrop-blur-md" @click.self="handleClose">
     <div class="glass-card p-6 w-full max-w-lg max-h-[80vh] overflow-y-auto">
       <div class="flex items-center justify-between mb-6">
@@ -125,6 +126,7 @@
       </div>
     </div>
   </div>
+  </Teleport>
 </template>
 
 <script setup lang="ts">