fix(images): match live <p>-wrapped img markup, drop width/height attrs

Two related fixes for the visual gaps reported after the previous pass:

1. Doctor portraits on /team were horizontally compressed. Cause: explicit
   width="200"/height="200" attributes interacted with Bootstrap's
   `img { display:block; max-width:100%; height:auto }` and `.float-right`
   padding to squish the rendered box. Dropping the attributes lets the
   browser use the resized image's intrinsic 200x200 dimensions, with the
   padding sitting around the image instead of inside its width.

2. Vertical rhythm was a few pixels off vs live. Cause: the live Grav
   markdown wraps standalone image references in <p> (markdown spec),
   adding the expected paragraph margin. Our shortcode emitted bare <img>
   with no wrapper, so the following <p> was visually slightly closer.
   Wrap the shortcode calls in <p> in the 6 service pages and 3 doctor
   blocks to restore the rhythm.

content/services/corona.md

@@ -6,7 +6,7 @@ weight = 20
 anchor = "Corona"
 +++
 
-{{ img(src="services/Corona.jpg", alt="Corona", class="float-right") }}
+<p>{{ img(src="services/Corona.jpg", alt="Corona", class="float-right") }}</p>
 
 Seit Beginn der Coronapandemie führen wir in unserer Praxis Tests auf das Corona-Virus (SARS-CoV-2) durch. 
 Zum Schutz aller Anwesenden werden Tests bei Patientinnen und Patienten **mit Symptomen**, sowie deren **Kontaktpersonen**, ausschließlich während