Use jekyll in the webpages

Makes translation easier

Closes #18972.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
Add Spanish translation

Closes #18945.
Closes #18980.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
In French, the "c" in "Version Française" takes a cedilla

Closes #18953.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
Typography fix for French version

In French the colon, exclamation points, interrogation points and
some other are always preceded by a non-breaking space.

Closes #18954.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>