[gnome] Add clipboard manager extension

gnome/.local/share/gnome-shell/extensions/clipboard-history@alexsaveau.dev/metadata.json

@@ -0,0 +1,16 @@
+{
+  "_generated": "Generated by SweetTooth, do not edit",
+  "description": "Gnome Clipboard History is a clipboard manager GNOME extension that saves items you've copied into an easily accessible, searchable history panel.",
+  "gettext-domain": "clipboard-history@alexsaveau.dev",
+  "name": "Clipboard History",
+  "settings-schema": "org.gnome.shell.extensions.clipboard-history",
+  "shell-version": [
+    "46",
+    "47",
+    "48",
+    "49"
+  ],
+  "url": "https://github.com/SUPERCILEX/gnome-clipboard-history",
+  "uuid": "clipboard-history@alexsaveau.dev",
+  "version": 47
+}