Build docker image containing modules (#34657)

Switch to bake to simplify the building of 2 images

modules/Dockerfile

@@ -1,24 +0,0 @@
-ARG ELEMENT_VERSION=latest@sha256:9f9b546280e67e492d56f6e775c449e74356bffb98daaf211abc755276713fad
-
-FROM --platform=$BUILDPLATFORM node:lts-alpine@sha256:f70403e87646dc51b45295f4b8b70cdad0b63d2297c4c9899119b03f7af7a6b3 AS builder
-
-ARG BUILD_CONTEXT
-
-RUN apk add --no-cache jq
-
-WORKDIR /app
-COPY package.json yarn.lock ./
-# Copy the package.json files of all modules & packages to ensure the frozen workspace lockfile holds up
-RUN --mount=type=bind,target=/docker-context \
-    cd /docker-context/; \
-    find . -path ./node_modules -prune -o -name "package.json" -mindepth 0 -maxdepth 4 -exec cp --parents "{}" /app/ \;
-RUN yarn install --frozen-lockfile --ignore-scripts
-COPY tsconfig.json ./
-COPY ./$BUILD_CONTEXT ./$BUILD_CONTEXT
-RUN cd $BUILD_CONTEXT && yarn vite build
-RUN mkdir /modules
-RUN cp -r ./$BUILD_CONTEXT/lib/ /modules/$(jq -r '"\(.name)-v\(.version)"' ./$BUILD_CONTEXT/package.json)
-
-FROM ghcr.io/element-hq/element-web:${ELEMENT_VERSION}
-
-COPY --from=builder /modules /modules/