Because it has too much space between the parts
Unfortunately, no. The feature request is tracked in this issue: Allow filter widgets to be placed anywhere in a page · Issue #13821 · metabase/metabase · GitHub
Please feel free to add a to the issue for more visibility and add any comments you think would be helpful for the team's prioritization!
I want to edit the css when sharing a public link, which folder path should I go to to change the layout of that page? Can you guide me?
Can you give me a metabase framework to customize according to my wishes?
The project is open source, you can grab the code and fork it
Where can I get the code and fork it? Can you give me the link?