doc/main/hubs: Use width to set scale.

Fixes https://github.com/pybricks/support/issues/844

doc/main/hubs/cityhub.rst

@@ -4,7 +4,7 @@ City Hub
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 .. figure:: ../../main/cad/output/hub-city.png
-    :height: 15 em
+    :width: 30%
 
 .. autoclass:: pybricks.hubs.CityHub
     :no-members:

doc/main/hubs/essentialhub.rst

@@ -6,7 +6,6 @@ Essential Hub
 .. figure:: ../../main/cad/output/hub-essential.png
     :width: 30%
 
-
 .. autoclass:: pybricks.hubs.EssentialHub
     :no-members:
 

doc/main/hubs/ev3brick.rst

@@ -2,7 +2,7 @@ MINDSTORMS EV3 Brick
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 .. figure:: ../../main/cad/output/ev3device-ev3.png
-    :height: 15 em
+    :width: 50%
 
 .. autoclass:: pybricks.hubs.EV3Brick
     :no-members:

doc/main/hubs/index.rst

@@ -18,35 +18,35 @@
 .. pybricks-classlink:: MoveHub
 
 .. figure:: ../../main/cad/output/hub-move.png
-    :width: 30%
+    :width: 40%
     :target: movehub.html
 
 .. pybricks-classlink:: CityHub
 
 .. figure:: ../../main/cad/output/hub-city.png
-    :width: 20%
+    :width: 25%
     :target: cityhub.html
 
 .. pybricks-classlink:: TechnicHub
 
 .. figure:: ../../main/cad/output/hub-technic.png
-    :width: 25%
+    :width: 35%
     :target: technichub.html
 
 .. pybricks-classlink:: InventorHub PrimeHub
 
 .. figure:: ../../main/cad/output/hub-inventor.png
-    :width: 25%
+    :width: 35%
     :target: primehub.html
 
 .. pybricks-classlink:: PrimeHub
 
 .. figure:: ../../main/cad/output/hub-prime.png
-    :width: 25%
+    :width: 35%
     :target: primehub.html
 
 .. pybricks-classlink:: EssentialHub
 
 .. figure:: ../../main/cad/output/hub-essential.png
-    :width: 20%
+    :width: 25%
     :target: essentialhub.html

doc/main/hubs/movehub.rst

@@ -6,7 +6,7 @@ Move Hub
 .. _fig_movehub:
 
 .. figure:: ../../main/diagrams/movehub.png
-    :height: 15 em
+    :width: 100%
 
 .. autoclass:: pybricks.hubs.MoveHub
     :no-members:

doc/main/hubs/primehub.rst

@@ -4,8 +4,7 @@ Prime Hub / Inventor Hub
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 .. figure:: ../../main/cad/output/hub-spike-inventor.png
-    :height: 15 em
-
+    :width: 80%
 
 .. class:: InventorHub
 

doc/main/hubs/technichub.rst

@@ -4,7 +4,7 @@ Technic Hub
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 .. figure:: ../../main/cad/output/hub-technic.png
-    :height: 15 em
+    :width: 40%
 
 .. autoclass:: pybricks.hubs.TechnicHub
     :no-members:

doc/main/parameters/side.rst

@@ -34,29 +34,29 @@ Side
     **Prime Hub**
 
     .. figure:: ../../main/diagrams/orientation_primehub.png
-        :height: 17 em
+        :width: 60%
 
     **Inventor Hub**
 
     .. figure:: ../../main/diagrams/orientation_inventorhub.png
-        :height: 17 em
+        :width: 60%
 
     **Essential Hub**
 
     .. figure:: ../../main/diagrams/orientation_essentialhub.png
-        :height: 17 em
+        :width: 60%
 
     **Move Hub**
 
     .. figure:: ../../main/diagrams/orientation_movehub.png
-        :height: 17 em
+        :width: 60%
 
     **Technic Hub**
 
     .. figure:: ../../main/diagrams/orientation_technichub.png
-        :height: 17 em
+        :width: 60%
 
     **Tilt Sensor**
 
     .. figure:: ../../main/diagrams/orientation_tiltsensor.png
-        :height: 17 em
+        :width: 60%