Fix checked-completed icon visibility in dark theme

PR #17946.

src/icons/checked-completed.svg

@@ -1 +1 @@
-<svg height="32" viewBox="0 0 32 32" width="32" xmlns="http://www.w3.org/2000/svg"><path d="m26.510257 4.5c-.516225 0-.957263.18055-1.31837.5422058l-12.696524 12.7199782-5.6872507-5.711533c-.3613312-.361483-.8023875-.542207-1.3183687-.542207-.516225 0-.9533625.180743-1.3146937.542207l-2.6330626 2.634133c-.3613312.361464-.54198754.79879-.54198754 1.315215 0 .516198.18056254.953984.54198754 1.315218l7.0056189 7.012105 2.6330638 2.630472c.361087.361483.798468.542206 1.314693.542206.515981 0 .957018-.180933 1.31835-.542206l2.633061-2.630472 14.011239-14.02055c.361088-.3614648.541987-.7987897.541987-1.3152163.000244-.516197-.180937-.9574144-.541987-1.3188781l-2.633063-2.6304718c-.361088-.3614833-.798712-.5422058-1.314693-.5422058z" fill="#483d8b" stroke-width="1.895719"/></svg>
+<svg height="32" viewBox="0 0 32 32" width="32" xmlns="http://www.w3.org/2000/svg"><path d="m26.510257 4.5c-.516225 0-.957263.18055-1.31837.5422058l-12.696524 12.7199782-5.6872507-5.711533c-.3613312-.361483-.8023875-.542207-1.3183687-.542207-.516225 0-.9533625.180743-1.3146937.542207l-2.6330626 2.634133c-.3613312.361464-.54198754.79879-.54198754 1.315215 0 .516198.18056254.953984.54198754 1.315218l7.0056189 7.012105 2.6330638 2.630472c.361087.361483.798468.542206 1.314693.542206.515981 0 .957018-.180933 1.31835-.542206l2.633061-2.630472 14.011239-14.02055c.361088-.3614648.541987-.7987897.541987-1.3152163.000244-.516197-.180937-.9574144-.541987-1.3188781l-2.633063-2.6304718c-.361088-.3614833-.798712-.5422058-1.314693-.5422058z" fill="#8250df" stroke-width="1.895719"/></svg>

src/webui/www/private/images/checked-completed.svg

@@ -1 +1 @@
-<svg height="32" viewBox="0 0 32 32" width="32" xmlns="http://www.w3.org/2000/svg"><path d="m26.510257 4.5c-.516225 0-.957263.18055-1.31837.5422058l-12.696524 12.7199782-5.6872507-5.711533c-.3613312-.361483-.8023875-.542207-1.3183687-.542207-.516225 0-.9533625.180743-1.3146937.542207l-2.6330626 2.634133c-.3613312.361464-.54198754.79879-.54198754 1.315215 0 .516198.18056254.953984.54198754 1.315218l7.0056189 7.012105 2.6330638 2.630472c.361087.361483.798468.542206 1.314693.542206.515981 0 .957018-.180933 1.31835-.542206l2.633061-2.630472 14.011239-14.02055c.361088-.3614648.541987-.7987897.541987-1.3152163.000244-.516197-.180937-.9574144-.541987-1.3188781l-2.633063-2.6304718c-.361088-.3614833-.798712-.5422058-1.314693-.5422058z" fill="#483d8b" stroke-width="1.895719"/></svg>
+<svg height="32" viewBox="0 0 32 32" width="32" xmlns="http://www.w3.org/2000/svg"><path d="m26.510257 4.5c-.516225 0-.957263.18055-1.31837.5422058l-12.696524 12.7199782-5.6872507-5.711533c-.3613312-.361483-.8023875-.542207-1.3183687-.542207-.516225 0-.9533625.180743-1.3146937.542207l-2.6330626 2.634133c-.3613312.361464-.54198754.79879-.54198754 1.315215 0 .516198.18056254.953984.54198754 1.315218l7.0056189 7.012105 2.6330638 2.630472c.361087.361483.798468.542206 1.314693.542206.515981 0 .957018-.180933 1.31835-.542206l2.633061-2.630472 14.011239-14.02055c.361088-.3614648.541987-.7987897.541987-1.3152163.000244-.516197-.180937-.9574144-.541987-1.3188781l-2.633063-2.6304718c-.361088-.3614833-.798712-.5422058-1.314693-.5422058z" fill="#8250df" stroke-width="1.895719"/></svg>