Merge branch 'feature/next-env' into 'development'

feat(env variables): added env variables

See merge request !23

.env

+
+NEXT_PUBLIC_BASE_API_URL = 'https://corsproxy.io/?https://pdmap.uni.lu/minerva/api'
+NEXT_PUBLIC_PROJECT_ID = 'pd_map_winter_23'
\ No newline at end of file

src/constants/api.ts

-export const BASE_API_URL = 'https://corsproxy.io/?https://pdmap.uni.lu/minerva/api';
+export const BASE_API_URL = process.env.NEXT_PUBLIC_BASE_API_URL || '';

src/constants/mapId.ts

-export const PROJECT_ID = 'pd_map_winter_23';
+export const PROJECT_ID = process.env.NEXT_PUBLIC_PROJECT_ID || '';