Fixes #50

Remove `$` get/set syntax from Insitux.

* Remove `$` syntax handling from `getExe` and `exeOp` functions in `src/index.ts`.
* Remove `$` syntax handling from `set`, `get`, and `exe` functions in `src/web.ts`.
* Remove mention of `$` get/set syntax from `README.md`.
* Remove tests related to `$` syntax in `src/test.ts`.
* Bump version to 24.10.30 in `package.json` and `package-lock.json`.

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For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/phunanon/Insitux/issues/50?shareId=XXXX-XXXX-XXXX-XXXX).

  - Remove any get/set API

  - Remove tests related to `$`
  - Remove getters/setters

How civilised

…xample.html

remove a space