fix: resolve assessments overview failing to load in production builds

Replace dynamic import of ./ui with static import to prevent Vite from
code-splitting into a separate chunk that CRXJS cannot resolve at runtime.

Bumps version to 3.6.3.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "betterseqtaplus",
-  "version": "3.6.2",
+  "version": "3.6.3",
   "type": "module",
   "description": "Enhance SEQTA Learn's usability and aesthetics! A fork of BetterSEQTA to continue development and add heaps more features!",
   "browserslist": "> 0.5%, last 2 versions, not dead",