Bug fix collection

[juliusknorr]

I was collecting some bug fixes, all split in small commits that were personal annoyances.

• fix: Properly scroll on mobile devices (fixes Hard to scroll column on touch screen #3799 fixes Scrolling columns doesn't work in safari #3203)
• fix: Avoid swipe navigation while scrolling
• fix: Proper slots for card selector dialog
• fix: Adapt spacing to new compact design
• fix: Fix styling of navigation input fields
• fix: Fix empty board view design
• fix: Move card create input to the bottom
• fix: Fix focus and emptycontent titles
• fix: Set proper name on modal
• fix: Fix modal sizing, focus error and cover image sizing
• fix: Proper drag zone height (fixes Attachments drag-and-drop area is small #6264)
• fix: Avoid double tap on iOS and close navigation on click
• fix: Auto-scroll horizontally (fixes scroll horizontally when dragging a card #6134, fixes Horizontal scrolling impossible on mobile devices #1960)
• fix: Hide navigation initially on mobile (fixes Collapse left sidebar after selecting a board #3280)

Adding issue references when i find them

[juliusknorr]

🏓 @luka-nextcloud for some review :)

[juliusknorr]

/backport to stable30