feat(language_server): add json to watched file extensions

Author: d-biehl

packages/language_server/src/robotcode/language_server/robotframework/protocol.py

@@ -135,6 +135,7 @@ class RobotLanguageServerProtocol(LanguageServerProtocol):
         "py",
         "yaml",
         "yml",
+        "json",
     }
 
     language_definitions: ClassVar[List[LanguageDefinition]] = [

packages/robot/src/robotcode/robot/diagnostics/imports_manager.py

@@ -844,7 +844,8 @@ def variables_changed(sender, variables: List[LibraryDoc]) -> None: ...
     def imports_changed(sender, uri: DocumentUri) -> None: ...
 
     def _on_possible_imports_modified(self, sender: Any, uri: DocumentUri) -> None:
-        # TODO: do we really need this?
+        # Fires on FileChangeType.CREATED — needed so namespaces with previously
+        # unresolved imports (file didn't exist yet) get invalidated and re-analyzed.
         self.imports_changed(self, uri)
 
     @language_id("robotframework")