Feat: Redesign Landing

[tristanremy]

Goals

• Visualy more appealing and paving the way for new design line
• Better UX
• Better SEO and other tech. metrics

Sub-tasks

• [x] #38
• [x] #39
• [x] #40
• [x] #41
• [x] #42
• [x] #45
• [x] #46
• [x] #47
• [x] #48

[LudoGranger]

@tristanremy https://www.loom.com/share/b95dae13bcb24053baf590e13661d88a?sid=0ed1dc93-443f-48cc-9ec5-9a5b67bc79da