Fix memory issue during initial configuration

[gupta-kartik]

Related to #30093

Add documentation and configuration changes to address memory issues during initial configuration.

• README.md

  • Add a note about the minimum RAM requirement for Rocket.Chat.
  • Add a note about adding swap space if RAM cannot be increased.

• apps/meteor/server/configureLogLevel.ts

  • Add a comment to suggest reducing log level to minimize memory usage.

• apps/meteor/example-pm2.json

  • Update the max_memory_restart value to 2048M.

• apps/meteor/.docker/Dockerfile

  • Add a comment to suggest increasing the memory limit for the container.

• apps/meteor/.docker-mongo/Dockerfile

  • Add a comment to suggest increasing the memory limit for the container.

• apps/meteor/.docker/Dockerfile.alpine

  • Add a comment to suggest increasing the memory limit for the container.

• apps/meteor/server/main.ts

  • Add a comment to suggest optimizing Rocket.Chat configuration to reduce memory usage.

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