opacity of Vector() and DashedVMobject(Vector) (Manim 0.17.3)

@EngRia is already working on this.

Since Dec 8, 2023.

## Description of bug / unexpected behavior
The set stroke opacity and fill opacity is not obeyed for arrow heads - especially not when used within a `DashedVMobject`

## Expected behavior
The opacity of the fill of the arrowhead is kept at 1.0 and not affected by setting the opacity value.

## How to reproduce the issue
Code for reproducing the problem

```py
class arrowTransp(Scene):
def construct(self):
arr1 = Arrow(ORIGIN,[2,2,0], color=GREEN).shift(2*LEFT+UP)
arr2 = arr1.copy().shift(DOWN).set_fill(opacity=0.4).set_stroke(opacity=0.4)
arr3 = VGroup(DashedVMobject(arr2.copy().shift(DOWN))).set_fill(opacity=0.4, family=True).set_stroke(opacity=0.4, family=True)
self.add(arr1,arr2,arr3)
arr4 = Arrow(ORIGIN,[2,2,0], color=RED, tip_shape=StealthTip).shift(RIGHT+UP)
arr5 = arr4.copy().shift(DOWN).set_fill(opacity=0.4).set_stroke(opacity=0.4)
arr6 = VGroup(DashedVMobject(arr5.copy().shift(DOWN))).set_fill(opacity=0.4, family=True).set_stroke(opacity=0.4, family=True)
self.add(arr4,arr5,arr6)
```

## Additional media files
Images/GIFs


## System specifications
System Details
- ManimCE 0.17.3
- OS: Windows 10 64 bit
- Python version: 3.9.8