fix(modules): quote YAML colons, remove empty lifecycle stop, and quote sample configs

[ValgulNecron]

Summary of Fixes

Discovered and validated through live testing on a real 3-node k3s cluster:

1. ark-survival-evolved/module.yaml:

   • Quote displayName: "ARK: Survival Evolved" and summary to fix PyYAML parsing failure caused by unquoted colons.
   • Restores module indexing in ModuleSource catalogs.

2. beammp/template.yaml & mount-and-blade-2-bannerlord/template.yaml:

   • Remove capabilities.lifecycle.stop: [] which violates the CRD OpenAPI schema constraint (minItems: 1).
   • Fixes Invalid value: 0: spec.capabilities.lifecycle.stop in body should have at least 1 items admission rejection on GameTemplate creation.

3. left-4-dead-2/template.yaml:

   • Set advertise: false on duplicate port 27015 UDP (query) to avoid Kubernetes Service creation conflict with game port.

4. Sample Manifests (modules/*/samples/gameserver*.yaml):

   • Quote numeric and boolean values in spec.config across 11 sample manifests (e.g. SRCDS_MAXPLAYERS: "24", MAX_PLAYERS: "64") to strictly satisfy CRD schema additionalProperties: { type: string }.