Add telemetry events backend for collab (#8220)

Send telemetry to collab not zed.dev

Release Notes:

- N/A

---------

Co-authored-by: Marshall <marshall@zed.dev>
Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>

crates/assistant/Cargo.toml

@@ -36,6 +36,7 @@ serde.workspace = true
 serde_json.workspace = true
 settings.workspace = true
 smol.workspace = true
+telemetry_events.workspace = true
 theme.workspace = true
 tiktoken-rs.workspace = true
 ui.workspace = true

crates/assistant/src/assistant_panel.rs

@@ -15,7 +15,6 @@ use ai::{
 };
 use anyhow::{anyhow, Result};
 use chrono::{DateTime, Local};
-use client::telemetry::AssistantKind;
 use collections::{hash_map, HashMap, HashSet, VecDeque};
 use editor::{
     actions::{MoveDown, MoveUp},
@@ -52,6 +51,7 @@ use std::{
     sync::Arc,
     time::{Duration, Instant},
 };
+use telemetry_events::AssistantKind;
 use theme::ThemeSettings;
 use ui::{
     prelude::*,