FIx roomsublist heights.

- also fiddles the font size numbers

src/utils/units.ts

@@ -14,7 +14,14 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+/* Simple utils for formatting style values
+ */
+
 // converts a pixel value to rem.
-export function toRem(pixelValue) {
+export function toRem(pixelValue: number): string {
     return pixelValue / 15 + "rem";
 }
+
+export function toPx(pixelValue: number): string {
+    return pixelValue + "px";
+}