Add units to some spinboxes on preferences pages (#19143)

* Add units to some spinboxes on preferences pages
* Ensure units have a space, ex: " px"
* FEM: Don't mark units for translation

src/Mod/CAM/Gui/DlgSettingsPathColor.ui

@@ -42,7 +42,7 @@
          <string>The default line thickness for new shapes</string>
         </property>
         <property name="suffix">
-         <string>px</string>
+         <string notr="true"> px</string>
         </property>
         <property name="maximum">
          <number>9</number>

src/Mod/CAM/Gui/Resources/preferences/PathDressupHoldingTags.ui

@@ -64,6 +64,9 @@ If the specified height is 0 the dressup will use half the height of the part. S
         <property name="toolTip">
          <string>Plunge angle for ascent and descent of holding tag.</string>
         </property>
+        <property name="suffix">
+         <string notr="true"> °</string>
+        </property>
         <property name="minimum">
          <double>5.000000000000000</double>
         </property>
@@ -85,7 +88,7 @@ If the specified height is 0 the dressup will use half the height of the part. S
         </property>
        </widget>
       </item>
-     <item row="3" column="1">
+      <item row="3" column="1">
        <widget class="Gui::InputField" name="ifRadius">
         <property name="toolTip">
          <string>Radius of the fillet on the tag's top edge.
@@ -94,7 +97,7 @@ If the radius is bigger than that which the tag shape itself supports, the resul
         </property>
        </widget>
       </item>
-      </layout>
+     </layout>
     </widget>
    </item>
    <item>