Make Theseus compilable out of the box again, update Tauri to 1.0.4

Changes made:
- migrate to Vite 3 (Svelte Kit errors out and forces you to migrate)
- bumped unplugin-icons to 0.14.7 (Vite 3 support)
- disable strict-peer-dependencies (changes needed in omorphia - unplugin-icons there requires Vite 2)
- bumped Tauri to 1.0.4 (finally stable!)
- removed useBootstrapper (removed in v1.0.0-rc.5)
- migrated from create_window to setup (removed in v1.0.0-rc.7)
- replaced %svelte% with %sveltekit% (renamed in SvelteKit 1.0.0-next.339)

Notes:
- Vite 3 exposes its dev server on port 5173.

theseus_gui/src-tauri/tauri.conf.json

@@ -4,7 +4,7 @@
   },
   "build": {
     "distDir": "../build",
-    "devPath": "http://localhost:3000",
+    "devPath": "http://localhost:5173",
     "beforeDevCommand": "pnpm dev:web",
     "beforeBuildCommand": "pnpm run build:web"
   },
@@ -32,13 +32,11 @@
       "shortDescription": "",
       "longDescription": "",
       "deb": {
-        "depends": [],
-        "useBootstrapper": false
+        "depends": []
       },
       "macOS": {
         "frameworks": [],
         "minimumSystemVersion": "",
-        "useBootstrapper": false,
         "exceptionDomain": "",
         "signingIdentity": null,
         "providerShortName": null,