Is your feature request related to a problem? Please describe.

Currently there are some links pointing to the google fonts api:

https://github.com/lowcoder-org/lowcoder/blob/main/client/packages/lowcoder/src/pages/editor/editorView.tsx#L563
https://github.com/lowcoder-org/lowcoder/blob/main/client/packages/lowcoder/src/pages/editor/editorView.tsx#L612
https://github.com/lowcoder-org/lowcoder/blob/main/client/packages/lowcoder/src/app.tsx#L292

Describe the solution you'd like

It would be nice to use the fonts in a offline workload (assets).

Describe alternatives you've considered

Use a default browser font without the need of any font file.