chore: rename project to liqa and fix code quality issues

- rename package names from liquio-qa-bot to liqa/liqa-client/liqa-server
- replace QA Bot text with liqa.svg logo image in sidebar header
- add favicon.svg (liqa-mini.svg) and page title update
- fix DescriptionList extractText generic type for TS strict props access
- configure server eslint to allow underscore-prefixed unused vars
- fix session.controller unused destructured vars (_cookies, _localStorage)
- update server package.json version import path after server rename
- fix session DELETE test assertion from 200 to 204

server/test/session.controller.spec.ts

@@ -125,11 +125,11 @@ describe("SessionController", () => {
   // ── DELETE /sessions/:id ───────────────────────────────────────────────────
 
   describe("DELETE /sessions/:id", () => {
-    it("deletes an existing session and returns 200", async () => {
+    it("deletes an existing session and returns 204", async () => {
       const s = await seedSession("delete-me-session");
       await request(app.getHttpServer())
         .delete(`/sessions/${s.id}`)
-        .expect(200);
+        .expect(204);
 
       const res = await request(app.getHttpServer())
         .get("/sessions")