feat: add tray control, priority restoration and session logging

assets/SILK-LICENSE.md

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+Original readme (from author of the icons)
+----------
+
+Silk icon set 1.3
+
+_________________________________________
+
+Mark James
+http://www.famfamfam.com/lab/icons/silk/
+
+_________________________________________
+
+This work is licensed under a
+Creative Commons Attribution 2.5 License.
+[ http://creativecommons.org/licenses/by/2.5/ ]
+
+This means you may use it for any purpose,
+and make any changes you like.
+All I ask is that you include a link back
+to this page in your credits.
+
+Are you using this icon set? Send me an email
+(including a link or picture if available) to
+mjames@gmail.com
+
+Any other questions about this icon set please
+contact mjames@gmail.com
+
+
+
+About the rest (all this repository but the icons)
+----------
+
+All the content of this repository (excepted the icon pack) 
+is licensed under the [MIT license](http://opensource.org/licenses/MIT).
+
+Though, it is just composed a few trivial json files and a Readme.

assets/SILK-SOURCE.json

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+{
+  "repository": "legacy-icons/famfamfam-silk",
+  "commit": "d6056f5c28e46c28403888ab7c013aced3928ec8",
+  "files": [
+    {
+      "name": "chart_bar_edit.png",
+      "path": "src/chart_bar_edit.png",
+      "bytes": 754,
+      "sha256": "f52dca6b882152f3a4f2459ea8a02a75a6d925bf18082cae31bb0ecc254fb9eb",
+      "identical_to_previous_asset": true
+    },
+    {
+      "name": "cross.png",
+      "path": "src/cross.png",
+      "bytes": 655,
+      "sha256": "d04ecfc93ff86c44f6fc39e35945e3d8a7648ba8fcd97a2635920df2e88893b3",
+      "identical_to_previous_asset": true
+    }
+  ]
+}