Clean up pinned projects

clients.radicle.xyz got migrated to Heartwood. Removed pax to have an
even number of projects and they align in two rows.

Signed-off-by: Rūdolfs Ošiņš <rudolfs@osins.org>

src/config.json

@@ -12,21 +12,6 @@
   },
   "projects": {
     "pinned": [
-      {
-        "name": "radicle-cli",
-        "id": "rad:git:hnrkmg77m8tfzj4gi4pa4mbhgysfgzwntjpao",
-        "seed": "clients.radicle.xyz"
-      },
-      {
-        "name": "radicle-interface",
-        "id": "rad:git:hnrkjajuucc6zp5eknt3s9xykqsrus44cjimy",
-        "seed": "clients.radicle.xyz"
-      },
-      {
-        "name": "radicle-client-services",
-        "id": "rad:git:hnrkk9c4zt9thuxhwi1ukxqcrs5tmhbtcsony",
-        "seed": "clients.radicle.xyz"
-      },
       {
         "name": "solmate",
         "id": "rad:git:hnrkbgczcfh9ycjtdfynmqyg478bqrso1hnty",
@@ -62,11 +47,6 @@
         "id": "rad:git:hnrkp5jgfxwxrffjsp148fyzdc457pa9ja38y",
         "seed": "pine.radicle.garden"
       },
-      {
-        "name": "pax",
-        "id": "rad:git:hnrkffdfm4et8c4g1ebpbkjj46nagyiepmu5o",
-        "seed": "pine.radicle.garden"
-      },
       {
         "name": "hexade",
         "id": "rad:git:hnrkxj511yr48oo3usrt4jzfoucj88zphpryo",