Remove pihole/train-times, and rearrange dashboard

[mendhak]

• [x] Remove pihole from SVG
• [x] Make the calendar section taller OR rearrange the dashboard: For example, time + date together, bottom left section for weather and weather description.
• [x] Remove pihole section from run.sh
• [x] Modify the README, remove PiHole references
• [x] Modify code.mendhak.com article to remove references to PiHole
• [x] Modify the env.sh, it doesn't need PiHole address anymore
• [x] Take a new photo
• [x] Neater logging output
• [x] Output PNG instead of BMP, since the display takes same amount of time.
• [x] Attribute Climacell Icons in the README.md

So far: