fix: symbolic icon size

Normalizes symbolic icon sizes to 16x16 to match designs.

extra/scalable/apps/help-contents-symbolic.svg

@@ -1,4 +1,4 @@
-<svg width="16" height="17" viewBox="0 0 16 17" fill="none" xmlns="http://www.w3.org/2000/svg">
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
 <g clip-path="url(#clip0_1527_4632)">
 <path d="M0.00305176 0.0150146H16.0031V16.015H0.00305176V0.0150146Z" fill="#808080" fill-opacity="0.00"/>
 <path d="M3.97298 1.02502C2.97998 1.02502 2.16298 1.75102 2.00598 2.69902V14.35C2.0823 14.8169 2.32195 15.2415 2.68221 15.5481C3.04247 15.8547 3.49992 16.0233 3.97298 16.024H11.973C13.063 16.024 13.947 15.15 13.969 14.064C13.979 12.971 13.974 8.64202 13.969 5.93402C13.9595 5.43608 13.7645 4.95962 13.422 4.59802L10.453 1.63002C10.2666 1.43858 10.0438 1.28642 9.79771 1.1825C9.55159 1.07859 9.28714 1.02505 9.01998 1.02502H3.97298ZM8.00598 6.02502C8.26862 6.02502 8.5287 6.07676 8.77135 6.17727C9.014 6.27777 9.23448 6.42509 9.4202 6.61081C9.60591 6.79653 9.75323 7.01701 9.85374 7.25966C9.95425 7.50231 10.006 7.76238 10.006 8.02502C10.006 8.28767 9.95425 8.54774 9.85374 8.79039C9.75323 9.03304 9.60591 9.25352 9.4202 9.43924C9.23448 9.62496 9.014 9.77227 8.77135 9.87278C8.5287 9.97329 8.26862 10.025 8.00598 10.025V11.025H7.00598V9.02502H8.00598C8.20376 9.02502 8.3971 8.96638 8.56155 8.85649C8.726 8.74661 8.85417 8.59043 8.92986 8.40771C9.00555 8.22498 9.02535 8.02392 8.98677 7.82993C8.94818 7.63595 8.85294 7.45777 8.71309 7.31792C8.57324 7.17806 8.39505 7.08282 8.20107 7.04424C8.00709 7.00565 7.80602 7.02546 7.6233 7.10114C7.44057 7.17683 7.28439 7.30501 7.17451 7.46945C7.06463 7.6339 7.00598 7.82724 7.00598 8.02502H6.00598C6.00598 7.49459 6.21669 6.98588 6.59177 6.61081C6.96684 6.23574 7.47555 6.02502 8.00598 6.02502ZM7.00598 12.025H8.00598V13.025H7.00598V12.025Z" fill="#232323"/>