Include no or only one blank line between the in-body syntax and code in R knitr chunks

[IndrajeetPatil]

Description

Having a single blank line between the chunk options and the chunk code helps visually distinguish them. But having more than one blank line is (IMO) rarely desirable. It would be good if {styler} could do this.

As for when there is no blank line, I am not sure if we should introduce one because the user intent is more likely to not have any separation between the options and the code.

This issue applies equally to .Rmd/.qmd docs.

Example-1

1 blank line

before

```{r}
#| label = "my_chunk",
#| fig.height = 6,




# code
x <- 1 
```

after

```{r}
#| label = "my_chunk",
#| fig.height = 6,

# code
x <- 1 
```

Example-2

0 blank lines (unsure, but my current preference)

before

```{r}
#| label = "my_chunk",
#| fig.height = 6,
# code
x <- 1 
```

after

```{r}
#| label = "my_chunk",
#| fig.height = 6,
# code
x <- 1 
```

[lorenzwalthert]

Happy to keep at most one. Potential interaction with #1056, so let's wait until we figured that one out.

[lorenzwalthert]

#1056 is no longer blocking this, if anyone wants to have a go with this.