Add plus icon

CHANGELOG.md

@@ -48,8 +48,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
   - `cloud`
   - `folder`
   - `heart`
-  - `mail`
   - `lock`
+  - `mail`
+  - `plus`
   - `search`
   - `star`
   - `unlock`

icons-manifest.json

@@ -48,5 +48,6 @@
   "square-minus",
   "circle",
   "circle-plus",
-  "circle-minus"
+  "circle-minus",
+  "plus"
 ]
\ No newline at end of file

icons/plus.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#000" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+  <line x1="12" y1="5" x2="12" y2="19"/>
+  <line x1="5" y1="12" x2="19" y2="12"/>
+</svg>
\ No newline at end of file