Refactor project tasks page and navigation components

- Updated the description in ProjectTasksPage to a placeholder.
- Commented out the display of assigned email in ProjectTasksList.
- Removed the dashboard link from the navigation items.
- Changed the main link in the navigation to point to projects instead of the dashboard.
- Commented out the LanguageSwitcher and user role display in the navigation.
- Translated "Project Location" to "Lokalizacja projektu" in ProjectMap.
- Commented out the instruction for using the layer control in ProjectMap.
- Removed the label "Coordinates:" from the coordinates display in ProjectMap.
- Updated project and contract subtitles in translations to placeholders.
- Added a new empty validation schema file.

Dockerfile

@@ -1,20 +1,39 @@
 # Use Node.js 22.11.0 as the base image
 FROM node:22.11.0
 
+# Install git
+RUN apt-get update && apt-get install -y git && rm -rf /var/lib/apt/lists/*
+
 # Set the working directory
 WORKDIR /app
 
-# Copy package.json and package-lock.json (if any)
+# If building from a git repository, clone it
+# This will be used when the build context doesn't include source files
+ARG GIT_REPO_URL
+ARG GIT_BRANCH=main
+ARG GIT_COMMIT
+
+# If GIT_REPO_URL is provided, clone the repo; otherwise copy local files
+RUN if [ -n "$GIT_REPO_URL" ]; then \
+    git clone --branch ${GIT_BRANCH} ${GIT_REPO_URL} . && \
+    if [ -n "$GIT_COMMIT" ]; then git checkout ${GIT_COMMIT}; fi; \
+  fi
+
+# Copy package.json and package-lock.json (if not cloned from git)
 COPY package*.json ./
 
 # Install dependencies
 RUN npm install
 
-# Copy the rest of the app
+# Copy the rest of the app (if not cloned from git)
+RUN if [ -z "$GIT_REPO_URL" ]; then echo "Copying local files..."; fi
 COPY . .
 
+# Build the application for production
+RUN npm run build
+
 # Expose the default Next.js port
 EXPOSE 3000
 
-# Start the dev server
-CMD ["npm", "run", "dev"]
+# Start the production server
+CMD ["npm", "start"]