feat(ui): render every application template except the loading screen as a Vue view

The scene chrome, cockpit, Display controls, command dock, layer panels,
Context rail, welcome card and Provider Settings move verbatim into
src/ui/views and mount into their hosts before the page is translated and
wired. Each view renders the same elements, attributes and text as its
template; Vue keeps whitespace between elements as one space, and no view
markup sits under a white-space: pre rule.

Template asset URLs stay literal, view files are left out of Prettier so
the markup is not reflowed, and the Node component loader moves to build/
and is exported as build/register-vue for host test runners. Hosts that do
not initialize Core's locale pass localePicker: false instead of editing
the markup.

build/vueOptions.js

@@ -1,11 +1,20 @@
 /**
  * Template compiler options shared by the browser build, the boundary check
- * and the unit-test loader. Whitespace is preserved so a view renders exactly
- * the DOM its static markup did: inline layouts depend on text between nodes.
+ * and the unit-test loader. Whitespace between nodes is kept so a view renders
+ * as its static markup did: inline layouts depend on text between nodes.
  */
-export const VUE_COMPILER_OPTIONS = Object.freeze({ whitespace: 'preserve' });
+const VUE_COMPILER_OPTIONS = Object.freeze({ whitespace: 'preserve' });
+
+/**
+ * SFC template options. Asset URLs such as `/pin.svg` stay literal, as they
+ * were in the static markup, instead of becoming module imports.
+ */
+export const VUE_TEMPLATE_OPTIONS = Object.freeze({
+  compilerOptions: VUE_COMPILER_OPTIONS,
+  transformAssetUrls: false,
+});
 
 /** `@vitejs/plugin-vue` options for application builds. */
 export const VUE_PLUGIN_OPTIONS = Object.freeze({
-  template: { compilerOptions: VUE_COMPILER_OPTIONS },
+  template: VUE_TEMPLATE_OPTIONS,
 });