timeline: add nip50 search timelines

Fixes: https://github.com/damus-io/notedeck/issues/456
Signed-off-by: William Casarin <jb55@jb55.com>

Cargo.lock

@@ -2726,7 +2726,7 @@ dependencies = [
 [[package]]
 name = "nostrdb"
 version = "0.5.1"
-source = "git+https://github.com/damus-io/nostrdb-rs?rev=ad3b345416d17ec75362fbfe82309c8196f5ad4b#ad3b345416d17ec75362fbfe82309c8196f5ad4b"
+source = "git+https://github.com/damus-io/nostrdb-rs?rev=e6b7ba82a2278ec92c6ecd507082c03c0a20842c#e6b7ba82a2278ec92c6ecd507082c03c0a20842c"
 dependencies = [
  "bindgen",
  "cc",
@@ -2800,6 +2800,7 @@ name = "notedeck_columns"
 version = "0.3.1"
 dependencies = [
  "base64 0.22.1",
+ "bech32",
  "bitflags 2.6.0",
  "dirs",
  "eframe",
@@ -2821,6 +2822,7 @@ dependencies = [
  "puffin 0.19.1 (git+https://github.com/jb55/puffin?rev=70ff86d5503815219b01a009afd3669b7903a057)",
  "puffin_egui",
  "rfd",
+ "rmpv",
  "security-framework",
  "serde",
  "serde_derive",
@@ -3865,6 +3867,27 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "rmp"
+version = "0.8.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "228ed7c16fa39782c3b3468e974aec2795e9089153cd08ee2e9aefb3613334c4"
+dependencies = [
+ "byteorder",
+ "num-traits",
+ "paste",
+]
+
+[[package]]
+name = "rmpv"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58450723cd9ee93273ce44a20b6ec4efe17f8ed2e3631474387bfdecf18bb2a9"
+dependencies = [
+ "num-traits",
+ "rmp",
+]
+
 [[package]]
 name = "roxmltree"
 version = "0.19.0"