DRY vite configs using a shared config (#33334)

* Fix OIDC login callback handling on Element Desktop

* Add unit tests

* Iterate

* Fix lcov reporter

* DRY vite configs using a shared config

* Iterate

* Revert change to electron-builder.ts

* Iterate

packages/vite-common/package.json

@@ -0,0 +1,19 @@
+{
+    "name": "@element-hq/vite-common",
+    "private": true,
+    "version": "0.0.0",
+    "type": "module",
+    "scripts": {
+        "lint:types": "tsc --noEmit"
+    },
+    "dependencies": {
+        "vitest": "catalog:"
+    },
+    "devDependencies": {
+        "typescript": "catalog:"
+    },
+    "peerDependencies": {
+        "@vitest/coverage-v8": "catalog:",
+        "vitest-sonar-reporter": "catalog:"
+    }
+}