feat(previews): add PDF Viewer (embedpdf) (#357)

* feat(previews): add PDF Viewer (embedpdf)

* implement auto theme

* conditionally include PDF Preview for lite

* update @embedpdf/snippe to ^2.2.0

* use local wasm

* update devalue to 5.6.2

* join wasm base_path

* @embedpdf/snippet ^2.3.0

---------

Signed-off-by: MadDogOwner <xiaoran@xrgzs.top>
Signed-off-by: Pikachu Ren <40362270+PIKACHUIM@users.noreply.github.com>
Co-authored-by: Pikachu Ren <40362270+PIKACHUIM@users.noreply.github.com>

Author: xrgzs

package.json

@@ -59,6 +59,7 @@
   },
   "dependencies": {
     "@egjs/view360": "4.0.0-beta.7",
+    "@embedpdf/snippet": "^2.3.0",
     "@github/webauthn-json": "^2.1.1",
     "@hope-ui/solid": "0.6.7",
     "@monaco-editor/loader": "1.7.0",