🔐 OIDC back-channel logout (#521)

* feat: oidc backchannel session storage
* feat: oidc backchannel logout
* ref: e2e test
* 🛠️ Code review
* ♻️ Do not mock internal auth token but call "/login" with oidc_token instead
* ♻️ Refactoring for back-channel logout test
* fix: feedback and e2e tests
* feat: more e2e tests
* ♻️ Added test to test multiple login requests flow
* ref: jwt sid verifier and e2e tests

---------

Co-authored-by: Monta <monta@HP-ProBook-445-14-inch-G9-Notebook-PC-505aadfc.localdomain>
Co-authored-by: Anton SHEPILOV <ashepilov@linagora.com>

tdrive/backend/node/config/test.json

@@ -1,4 +1,9 @@
 {
+  "general": {
+    "accounts": {
+      "type": "remote"
+    }
+  },
   "database": {
     "secret": "",
     "mongodb": {