Fix frontend Dockerfile to include pnpm-workspace.yaml

The pnpm-workspace.yaml contains security overrides that must be present
during install, otherwise pnpm fails with ERR_PNPM_LOCKFILE_CONFIG_MISMATCH.

Author: Starefossen

quotes-frontend/Dockerfile

@@ -3,7 +3,7 @@ RUN npm install -g pnpm@10
 
 FROM base AS deps
 WORKDIR /app
-COPY package.json pnpm-lock.yaml .npmrc ./
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml .npmrc ./
 RUN pnpm install --frozen-lockfile
 
 FROM base AS builder