feat: added login to people

Created by: Nabilsenko

Test using the endpoint: POST/login Example of JSON object { "email" : "nabil", "passwordHash" : "gGmvD.U1!" } The returned token must be stored somewhere in the front. It must be sent in the bearer of each request (for now, only in GET/people & GET/people/{id}).

src/login/jwt.strategy.ts

+import { PassportStrategy } from "@nestjs/passport";
+import { ExtractJwt, Strategy } from "passport-jwt";
+import { jwtConstants } from '../constants';
+
+export class JwtStrategy extends PassportStrategy(Strategy) {
+    constructor() {
+        super({
+            jwtFromRequest: ExtractJwt.fromAuthHeaderAsBearerToken(),
+            ignoreExpiration: false,
+            secretOrKey: jwtConstants.secret
+        })
+    }
+
+    async validate(payload: any) {
+        return {userId: payload.sub, email: payload.email}
+    }
+}
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