feat(icons): added solar-panel icon (#2780)

* Added icons/solar-panel.svg

* Added icons/solar-panel.json

* Updated icons/solar-panel.svg

* Updated icons/solar-panel.json

* Update solar-panel.svg

* Update solar-panel.json

---------

Co-authored-by: Eric Fennis <eric.fennis@gmail.com>

Author: UsamaKhan

icons/solar-panel.json

@@ -0,0 +1,23 @@
+{
+  "$schema": "../icon.schema.json",
+  "contributors": [
+    "UsamaKhan",
+    "jguddas",
+    "karsa-mistmere"
+  ],
+  "tags": [
+    "solar panel",
+    "solar",
+    "panel",
+    "sun",
+    "energy",
+    "electricity",
+    "light"
+  ],
+  "categories": [
+    "home",
+    "science",
+    "sustainability",
+    "weather"
+  ]
+}