- Removed commented-out code from `element_action.v` and
`element_codeblock.v`.
- Enabled processing of actions within code blocks.
- The code now correctly handles multiple actions within a
code block.
- Improves the handling of actions within Markdown.
- Remove unnecessary casts from `int(lut.keysize)` to `lut.keysize`
- This simplifies the code and improves readability.
- No functional changes are introduced.
