Context Menu, CSS Modules and React 19 (#1015)

This replaces the context menu with our own. By doing that we no longer
need to force install our npm packages, as there are no longer any
conflicts. In fact, as part of this change, I updated us to the latest
React 19 and even enabled the React compiler.

I also explored CSS modules for the first time, which are going to allow
us to reduce conflicts between CSS rules and possibly even allow us to
fully remove SASS, as the need for it is going to be reduced.

I also found out that the latest Rust nightly is broken due to their
update to LLVM 20. So I pinned the version to the last working nightly
version.

Author: CryZe

.github/workflows/ci.yml

@@ -70,7 +70,7 @@ jobs:
       - name: Install Rust
         uses: hecrj/setup-rust-action@v2
         with:
-          rust-version: nightly
+          rust-version: nightly-2025-02-17
           components: rust-src
           targets: wasm32-unknown-unknown
 
@@ -114,7 +114,7 @@ jobs:
           mv wasm-bindgen-${{ steps.wasm-bindgen.outputs.version }}-${{ matrix.target }}/wasm* .
 
       - name: Install npm packages
-        run: npm ci -f
+        run: npm ci
         env:
           DETECT_CHROMEDRIVER_VERSION: true
 

README.md

@@ -40,7 +40,7 @@ cargo install wasm-bindgen-cli
 You need to set up some npm modules before compiling the project:
 
 ```bash
-npm install -f
+npm install
 ```
 
 You are now ready to build livesplit-core, which powers LiveSplit One:

buildCore.js

@@ -28,11 +28,17 @@ if (process.argv.some((v) => v === "--max-opt")) {
 if (process.argv.some((v) => v === "--unstable")) {
     // Relaxed SIMD is not supported by Firefox and Safari yet.
     rustFlags += ",+relaxed-simd";
+
+    // Not supported by any browser yet.
+    rustFlags += ",+wide-arithmetic";
 }
 
 // Use the nightly toolchain, which enables some more optimizations.
 if (process.argv.some((v) => v === "--nightly")) {
-    toolchain = "+nightly";
+    // FIXME: Nightly is broken since the LLVM 20 upgrade. We need to wait for
+    // stdarch (which has the fix already) to be updated:
+    // https://github.com/rust-lang/stdarch/pull/1719
+    toolchain = "+nightly-2025-02-17";
     cargoFlags +=
         " -Z build-std=std,panic_abort -Z build-std-features=panic_immediate_abort";
     rustFlags += " -Z wasm-c-abi=spec";