[GEN-2004] feat(frontend): source describe (#1977)

This pull request introduces several new types and functionalities to
enhance the analysis and description of Kubernetes sources in the
`frontend/graph` module. The key changes include the addition of new
types in the GraphQL schema and the implementation of a resolver
function to describe sources.

### New Types and Schema Enhancements:

* **GraphQL Schema (`frontend/graph/schema.graphqls`):**
- Added new types such as `EntityProperty`,
`InstrumentationLabelsAnalyze`, `InstrumentationConfigAnalyze`,
`ContainerRuntimeInfoAnalyze`, `RuntimeInfoAnalyze`,
`InstrumentedApplicationAnalyze`, `ContainerWorkloadManifestAnalyze`,
`InstrumentationDeviceAnalyze`, `InstrumentationInstanceAnalyze`,
`PodContainerAnalyze`, `PodAnalyze`, and `SourceAnalyze`.
- Updated existing schema definitions to include the new
`describeSource` query and adjusted formatting for better readability.
([frontend/graph/schema.graphqlsL208-R212](diffhunk://#diff-bc07b91dedd1782d9ddbbb6374ad97c7604f9a267de5174645723d863c732f80L208-R212),
Fdc622fbL474R541)

### New Structs and Types:

* **Model Definitions (`frontend/graph/model/models_gen.go`):**
- Added new structs such as `ContainerRuntimeInfoAnalyze`,
`ContainerWorkloadManifestAnalyze`, `EntityProperty`,
`InstrumentationConfigAnalyze`, `InstrumentationDeviceAnalyze`,
`InstrumentationInstanceAnalyze`, `InstrumentationLabelsAnalyze`,
`InstrumentedApplicationAnalyze`, `PodAnalyze`, `PodContainerAnalyze`,
`RuntimeInfoAnalyze`, and `SourceAnalyze`.
[[1]](diffhunk://#diff-642ccd7ed71fdfa394bd7f7fd99c9c33e20ff18c876a91cb989d379a44390469R81-R93)
[[2]](diffhunk://#diff-642ccd7ed71fdfa394bd7f7fd99c9c33e20ff18c876a91cb989d379a44390469R148-R154)
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[[4]](diffhunk://#diff-642ccd7ed71fdfa394bd7f7fd99c9c33e20ff18c876a91cb989d379a44390469R293-R298)
[[5]](diffhunk://#diff-642ccd7ed71fdfa394bd7f7fd99c9c33e20ff18c876a91cb989d379a44390469R443-R455)
[[6]](diffhunk://#diff-642ccd7ed71fdfa394bd7f7fd99c9c33e20ff18c876a91cb989d379a44390469R525-R529)
[[7]](diffhunk://#diff-642ccd7ed71fdfa394bd7f7fd99c9c33e20ff18c876a91cb989d379a44390469R544-R557)

### Resolver Implementation:

* **Resolver Function (`frontend/graph/schema.resolvers.go`):**
- Implemented the `DescribeSource` resolver function to handle the new
`describeSource` query.

### Service Layer:

* **Service Implementation (`frontend/services/describe.go`):**
- Added a new service function `GetSourceDescription` to fetch and
convert source descriptions from Kubernetes into GraphQL response
format.

These changes collectively enhance the system's ability to analyze and
describe Kubernetes sources, providing detailed insights into various
properties and configurations.

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Co-authored-by: alonkeyval <[email protected]>