feat: migrate Hugo Bootstrap theme to latest Hugo with Tailwind CSS and refactor codebase

* replace Bootstrap-based styling with Tailwind CSS
* update theme compatibility for latest Hugo version
* refactor templates and partials
* fix outdated code and broken components
* improve project structure and maintainability
* optimize styling and frontend build setup

.devcontainer/Dockerfile

@@ -0,0 +1,44 @@
+# Use an official node image as a parent image
+FROM node:23
+
+# Set environment variables for versions
+ARG HUGO_VERSION=0.158.0
+ARG GO_VERSION=1.24.0
+
+# Install dependencies
+RUN apt-get update && \
+    apt-get install -y ca-certificates openssl git curl wget build-essential && \
+    rm -rf /var/lib/apt/lists/*
+
+# Determine architecture
+RUN ARCH=$(uname -m) && \
+    if [ "$ARCH" = "aarch64" ]; then ARCH=arm64; else ARCH=amd64; fi && \
+    echo "Architecture: $ARCH"
+
+# Download and install Hugo Extended
+RUN ARCH=$(uname -m) && \
+    if [ "$ARCH" = "aarch64" ]; then ARCH=arm64; else ARCH=amd64; fi && \
+    wget -O hugo_extended_${HUGO_VERSION}.tar.gz https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-${ARCH}.tar.gz && \
+    tar xf hugo_extended_${HUGO_VERSION}.tar.gz && \
+    mv hugo /usr/bin/hugo && \
+    rm hugo_extended_${HUGO_VERSION}.tar.gz && \
+    echo "Hugo installed"
+
+# Download and install Go
+RUN ARCH=$(uname -m) && \
+    if [ "$ARCH" = "aarch64" ]; then ARCH=arm64; else ARCH=amd64; fi && \
+    wget -O go${GO_VERSION}.linux-${ARCH}.tar.gz https://dl.google.com/go/go${GO_VERSION}.linux-${ARCH}.tar.gz && \
+    tar -C /usr/local -xzf go${GO_VERSION}.linux-${ARCH}.tar.gz && \
+    rm go${GO_VERSION}.linux-${ARCH}.tar.gz && \
+    echo "Go installed"
+
+# Export Go path
+ENV PATH=$PATH:/usr/local/go/bin
+
+# Verify versions
+RUN git --version && \
+    hugo version && \
+    go version
+
+# Default shell
+CMD ["/bin/bash"]