Updated of dynamo 1.4.2

[Starlitnightly]

• [x] Add the adjustText package to solve the issue of legend overlap.
• [x] Optimize the display of the tutorial page.
• [x] Reproduce all the tutorials and optimize the visual effects.
• [ ] Add a multi-module for multi-omics velocity analysis.
• [ ] Add a tutorial for analysis without RNA velocity.
• [ ] Add the tutorial of multi-omics velocity analysis.

Add the adjustText package to solve the issue of legend overlap.

Before:

After: