feat: allow to use redis cache instead of memory cache (#832)

* feat(backend/cache): allow to use redis cache instead as memory

* feat(frontend/admin): add cache section

Add a new section for cache attributes. Also add US translation.

---------

Co-authored-by: Jules Lefebvre <jules.lefebvre@diabolocom.com>

backend/src/cache/cache.module.ts

@@ -0,0 +1,41 @@
+import { Module } from "@nestjs/common";
+import { CacheModule } from "@nestjs/cache-manager";
+import { CacheableMemory } from "cacheable";
+import { createKeyv } from "@keyv/redis";
+import { Keyv } from "keyv";
+import { ConfigModule } from "src/config/config.module";
+import { ConfigService } from "src/config/config.service";
+
+@Module({
+  imports: [
+    ConfigModule,
+    CacheModule.registerAsync({
+      isGlobal: true,
+      imports: [ConfigModule],
+      inject: [ConfigService],
+      useFactory: async (configService: ConfigService) => {
+        const useRedis = configService.get("cache.redis-enabled");
+        const ttl = configService.get("cache.ttl");
+        const max = configService.get("cache.maxItems");
+
+        let config = {
+          ttl,
+          max,
+          stores: [],
+        };
+
+        if (useRedis) {
+          const redisUrl = configService.get("cache.redis-url");
+          config.stores = [
+            new Keyv({ store: new CacheableMemory({ ttl, lruSize: 5000 }) }),
+            createKeyv(redisUrl),
+          ];
+        }
+
+        return config;
+      },
+    }),
+  ],
+  exports: [CacheModule],
+})
+export class AppCacheModule {}