feat: enhance web interface layout and fix logo import circular dependency

- Improve web interface layout for better user-friendliness and mobile responsiveness
  * Update CSS variables for consistent spacing and component sizing
  * Enhance card layouts with improved padding, borders, and shadows
  * Optimize button and form element dimensions for better touch targets
  * Add hover effects and animations for improved user interaction
  * Implement responsive grid system with mobile-first approach

- Refactor mobile JavaScript to prevent duplicate initialization
  * Consolidate mobile enhancements into dedicated utility classes
  * Add initialization guards to prevent double loading
  * Implement MobileUtils and MobileNavigation classes
  * Remove duplicate event listeners and mobile enhancements

- Fix circular import issue in logo handling
  * Replace problematic 'from app import app' with Flask's current_app
  * Add error handling for cases where current_app is unavailable
  * Improve logo path resolution with fallback mechanisms
  * Fix settings model to use proper Flask context

- Clean up template code and remove duplication
  * Remove duplicate mobile enhancements from base template
  * Clean up dashboard template JavaScript
  * Centralize all mobile functionality in mobile.js
  * Add proper error handling and debugging

- Update CSS variables and spacing system
  * Introduce --section-spacing and --card-spacing variables
  * Add mobile-specific spacing variables
  * Improve border-radius and shadow consistency
  * Enhance typography and visual hierarchy

This commit resolves the double loading issue and logo import errors while
significantly improving the overall user experience and mobile responsiveness
of the web interface.

.github/workflows/docker-publish.yml

@@ -0,0 +1,96 @@
+name: Build and Publish TimeTracker Docker Image
+
+on:
+  push:
+    branches: [ main ]
+    tags: [ 'v*' ]
+  pull_request:
+    branches: [ main ]
+  release:
+    types: [ published ]
+  workflow_dispatch:
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: drytrix/timetracker
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    strategy:
+      matrix:
+        include:
+          - name: amd64
+            platform: linux/amd64
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Check files and create combined Dockerfile
+        run: |
+          echo "--- Checking available files ---"
+          pwd
+          ls -la
+          echo "--- Checking if requirements.txt exists ---"
+          if [ -f requirements.txt ]; then
+            echo "requirements.txt found:"
+            cat requirements.txt
+          else
+            echo "requirements.txt NOT found!"
+            echo "Available .txt files:"
+            find . -name "*.txt" -type f
+          fi
+          
+          echo "--- Creating combined Dockerfile ---"
+          cp Dockerfile Dockerfile.final
+          echo "Combined Dockerfile created successfully"
+
+      - name: Build and push Docker image
+        run: |
+          IMAGE_ID=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          
+          # Extract version from ref
+          if [[ "${GITHUB_REF}" == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF#refs/tags/}
+          elif [[ "${GITHUB_REF}" == refs/heads/* ]]; then
+            VERSION=${GITHUB_REF#refs/heads/}
+          else
+            VERSION=unknown
+          fi
+
+          # Replace any slashes with dashes (for feature branches etc.)
+          VERSION=${VERSION//\//-}
+
+          echo "Image ID: $IMAGE_ID"
+          echo "Version: $VERSION"
+
+          # Build the Docker image
+          docker build -f Dockerfile.final -t $IMAGE_ID:$VERSION .
+
+          # Always push versioned tag on releases/tags
+          if [ "${{ github.event_name }}" != "pull_request" ]; then
+            echo ${{ secrets.GITHUB_TOKEN }} | docker login ${{ env.REGISTRY }} -u ${{ github.actor }} --password-stdin
+            docker push $IMAGE_ID:$VERSION
+            
+            # If this is a release, also push as latest
+            if [ "${{ github.event_name }}" == "release" ]; then
+              docker tag $IMAGE_ID:$VERSION $IMAGE_ID:latest
+              docker push $IMAGE_ID:latest
+            fi
+          fi