Add a flowchart environnement and its listof (#188)

* Add a flowchart environnement and its listof

So we can more easily access those flowcharts from pdf and website,
rather than looking in the crowded list of figures.

* Update book/troubleshooting/misc.tex

* Temporarily remove list of flow charts from web version

* Update clean target to deal with listofcharts

* Silent KOMA warnings (#190)

No functional change, but less warnings will help to read the logs.
Good idea anyway to use the key/value scheme

Co-authored-by: Cedric <ced@awase.ostal>

* Fix front-page for one sided printing (#189)

As it is manually placed, is prone to break on evry change of the page
geometry...  This one looks good though in today's conditions.

Co-authored-by: Cedric <ced@awase.ostal>

* Enable micro-typographical improvements (#191)

Few people will notice but this actually brings loads of improvements to
line breaking, handing punctuations etc.

* Revert "Temporarily remove list of flow charts from web version"

This reverts commit 9611b250d2.

* Implement listofflowchart for tex4ht

as per michal suggestion:
https://github.com/michal-h21/tex4ebook/issues/114#issuecomment-1688543095

---------

Co-authored-by: Cedric <ced@awase.ostal>
Co-authored-by: Hendrik Kleinwaechter <hendrik.kleinwaechter@gmail.com>

book/bread-types/bread-types.tex

@@ -165,7 +165,7 @@ easiest way to start making great bread at home. With just a
 few steps, you can stop buying bread forever. This works with
 any flour, including gluten-free options.
 
-\begin{figure}[!htb]
+\begin{flowchart}[!htb]
 \begin{center}
   \input{figures/fig-process-flat-bread.tex}
   \caption[Flat bread process]{The process of making a flatbread is very
@@ -173,7 +173,7 @@ any flour, including gluten-free options.
       handy for busy bakers.}%
   \label{fig:flat-bread-process}
 \end{center}
-\end{figure}
+\end{flowchart}
 
 This is my go-to recipe that I~use to make bread whenever
 I~have little time or when I~am abroad. You can choose