feat(web): role groups, last seen and unread markers in members, channels and spaces; lock channels without keys

web/src/styles/tokens.css

@@ -9,6 +9,7 @@
   --text-dim: #6b6b6b;
   --accent: #1a1a1a;
   --on-accent: #fff;
+  --on-danger: #fff;
 
   --ok: #1f7a4d;
   --warn: #b25e00;
@@ -78,6 +79,7 @@
     --text-dim: #8a8a8a;
     --accent: #ececec;
     --on-accent: #141414;
+    --on-danger: #141414;
 
     --ok: #5bc48a;
     --warn: #e0a050;
@@ -107,6 +109,7 @@
   --text-dim: #8a8a8a;
   --accent: #ececec;
   --on-accent: #141414;
+  --on-danger: #141414;
 
   --ok: #5bc48a;
   --warn: #e0a050;