Remove vignette note (#290)

# Pull Request

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[CI checks are
failing](https://github.com/r-universe/pharmaverse/actions/runs/11851042359/job/33026981747)
due to the vignettes not being created.

There is a note about using a Rmd as childe file in the vignettes. This
file is recognized as a vignette.
We can a) move it to a different folder like what it is done for
articles, something like `vignettes/child`? or b) move the code chunk
into the vignette.
As it was only used once, I moved the code chunk into the file directly.
This made this error disappear. 

There were errors due to some code moving from rtables to
rtables.office. I think this should be taken care now that
rtables.office is
[fixed](insightsengineering/rtables.officer#21)
and building well.

.gitignore

@@ -29,3 +29,5 @@ vignettes/*.html
 vignettes/*.md
 tests/testthat/_snaps/**/*.new.md
 tests/testthat/_snaps/**/*.new.svg
+/doc/
+/Meta/

vignettes/teal-reporter-blocks-overview.Rmd

@@ -29,8 +29,17 @@ along with descriptions and usage examples:
  These blocks form the building blocks of a `ReportCard`, each serving a specific function that contributes to the overall layout and content of the report. The `ReportCard` object utilizes `append_*` methods to integrate various blocks such as `TextBlock`, `PictureBlock`, `RcodeBlock`, and `TableBlock`.
 
 The following diagram illustrates the inheritance relationship between the different blocks:
-```{r, child="_setup.Rmd"}
+
+```{css mermaid, echo=FALSE}
+pre.mermaid {
+  background: transparent;
+}
+```
+
+```{r load_mermaid, echo=FALSE}
+shiny::tags$script(type = "module", "import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid/+esm'")
 ```
+
 ```{r actors_mermaid2, echo=FALSE}
 shiny::pre(
   class = "mermaid",