Add external link icons

icons/Adwaita/external-link.svg

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   height="16"
+   width="16"
+   version="1.1"
+   id="svg6"
+   sodipodi:docname="adw-external-link-symbolic.svg"
+   inkscape:version="1.2.2 (b0a8486541, 2022-12-01)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview5"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     showgrid="false"
+     inkscape:zoom="50.5625"
+     inkscape:cx="7.4165637"
+     inkscape:cy="7.9901112"
+     inkscape:window-width="1920"
+     inkscape:window-height="1011"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg6" />
+  <defs
+     id="defs10" />
+  <path
+     id="rect322"
+     style="opacity:1;fill:#000000;stroke:none;stroke-width:1.13635;stroke-linecap:round;-inkscape-stroke:none;stop-color:#000000;fill-opacity:1"
+     d="m 9.0320052,1.6968108 c -0.4192844,0 -0.6293195,0.5068842 -0.332917,0.8034396 L 10.272676,4.0671798 7.2697646,7.0700911 c -0.2101289,0.2266285 -0.2101292,0.576812 0,0.8034397 L 8.1464459,8.7524317 C 8.365808,8.9010838 8.6926374,8.867404 8.8766439,8.6769707 l 3.0073511,-3.0073501 1.56249,1.5580516 c 0.296554,0.2964014 0.803439,0.086367 0.803439,-0.332917 V 2.2982809 c 0.0053,-0.3350382 -0.26865,-0.606861 -0.603689,-0.6014701 z M 4.0227141,2.8331675 c -1.2590758,0 -2.2727134,1.0136376 -2.2727134,2.2727134 v 6.9246731 c 0,1.259076 1.0136376,2.272714 2.2727134,2.272714 h 6.8181399 c 1.259076,0 2.272714,-1.013638 2.272714,-2.272714 V 8.3351757 C 12.679767,8.1204575 12.298164,7.7440796 11.977212,7.3808136 v 4.6497404 c 0,0.629536 -0.506823,1.136356 -1.136358,1.136356 H 4.0227141 c -0.6295375,0 -1.1363567,-0.50682 -1.1363567,-1.136356 V 5.1058809 c 0,-0.6295376 0.5068192,-1.1363567 1.1363567,-1.1363567 H 8.5903353 C 8.2266575,3.6488497 7.8481718,3.2672185 7.6315343,2.8331675 Z" />
+</svg>

icons/Material/external-link.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="48" viewBox="0 -960 960 960" width="48"><path d="M180-120q-24 0-42-18t-18-42v-600q0-24 18-42t42-18h279v60H180v600h600v-279h60v279q0 24-18 42t-42 18H180Zm202-219-42-43 398-398H519v-60h321v321h-60v-218L382-339Z"/></svg>