chore: fix typo in Dockerfile (#2966)

frontend/scripts/docker-buildfiles/Dockerfile

@@ -46,7 +46,7 @@ RUN flutter config --enable-linux-desktop
 RUN flutter doctor
 RUN dart pub global activate protoc_plugin 20.0.1
 
-# Intall build dependencies for AppFlowy
+# Install build dependencies for AppFlowy
 RUN sudo pacman -S --noconfirm git libkeybinder3 sqlite clang
 RUN source ~/.cargo/env && cargo install --force cargo-make duckscript_cli