fix(docker): stabilize workspace dependency install (#1533)

* fix(docker): pin bun image

* fix(docker): copy electron workspace manifest

* fix(docker): remove stale desktop manifest copy

Dockerfile

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1
-FROM oven/bun:1 AS base
+FROM oven/bun:1.3.5 AS base
 WORKDIR /app
 
 FROM base AS deps
@@ -16,7 +16,7 @@ WORKDIR /app
 COPY . .
 RUN bun run build:web
 
-FROM oven/bun:1 AS runtime
+FROM oven/bun:1.3.5 AS runtime
 WORKDIR /home/openchamber
 
 RUN apt-get update && apt-get install -y --no-install-recommends \