message: docs: clarify how type-only imports can be used to avoid NG3003
  Since type-only imports are not considered for cyclic imports.
  This commit adds a note to the NG3003 error documentation to mention
  using type-only imports to avoid the error.
  PR Close
diff: @@ -53,3 +53,5 @@ component being compiled. Here are some ideas for fixing the problem:
  that is stored in an independent file that can be imported to both dependent files without
  causing an import cycle.
  * Move the classes that reference each other into the same file, to avoid any imports between them.
  +* Convert import statements to type-only imports (using `import type` syntax) if the imported declarations
  +are only used as types, as type-only imports do not contribute to cycles.
  