feat(icons): added check-line icon (#2890)

* Added icons/check-line.svg

* Added icons/check-line.json

* Inherit contributors from check icon

* Fix order of properties

---------

Co-authored-by: Eric Fennis <[email protected]>

Author: oosawy

icons/check-line.json

@@ -0,0 +1,17 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "colebemis",
+    "oosawy"
+  ],
+  "tags": [
+    "done",
+    "todo",
+    "tick",
+    "complete",
+    "task"
+  ],
+  "categories": [
+    "notifications"
+  ]
+}