Remove nightly FMT (#319)

* remove rustfmt

* default fmt

* remove +nightly

* stable toolchain

* remove nightly mentions

Dockerfile

@@ -77,9 +77,8 @@ COPY --chown=xmtp:xmtp --from=builder /home/xmtp/.rustup /home/xmtp/.rustup
 
 USER xmtp
 
-# fmt coming from nightly
-RUN ~xmtp/.cargo/bin/rustup toolchain install nightly
-RUN ~xmtp/.cargo/bin/rustup component add rustfmt --toolchain nightly
+RUN ~xmtp/.cargo/bin/rustup toolchain install stable 
+RUN ~xmtp/.cargo/bin/rustup component add rustfmt
 RUN ~xmtp/.cargo/bin/rustup component add clippy
 
 WORKDIR /workspaces/libxmtp
@@ -89,8 +88,8 @@ ENV PATH=~xmtp/.cargo/bin:$PATH
 ENV USER=xmtp
 
 RUN ~xmtp/.cargo/bin/cargo check
-RUN ~xmtp/.cargo/bin/cargo +nightly --version
-RUN ~xmtp/.cargo/bin/cargo +nightly fmt --check
+RUN ~xmtp/.cargo/bin/cargo --version
+RUN ~xmtp/.cargo/bin/cargo fmt --check
 RUN ~xmtp/.cargo/bin/cargo clippy --all-features --no-deps
 RUN ~xmtp/.cargo/bin/cargo clippy --all-features --no-deps --manifest-path xmtp/Cargo.toml
 # some tests are setup as integration tests 👀 xmtp_mls
@@ -105,4 +104,4 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
     org.label-schema.vendor="xmtp" \
     org.label-schema.version=$VERSION \
     org.label-schema.schema-version="1.0" \
-    org.opencontainers.image.description="Rust Development Container"
+    org.opencontainers.image.description="Rust Development Container"

rustfmt.toml

@@ -1,6 +0,0 @@
-imports_granularity = "Crate"
-# Match rust-analyzer auto-imports
-group_imports = "StdExternalCrate"
-comment_width = 100
-format_code_in_doc_comments = true
-wrap_comments = true