Please program the game letting me use WASD keys and make the speed slower!

Feels like a very simplified version of space invaders.
I'm guessing this is your first game release, but didn't check.
If so: welcome to being a developer! And keep going!

"its to bring awareness to the dangers of covid in a clicker shooter game"
If it is meant to be CORVID-19 then it should take place in the human body (as one game did) or between people, with the goal of preventing transmission.

As to game play: The controls on a PC for left / right movement is too sensitive, and probably shouldn't be that fast on a phone either. Part of the original space invaders was to plan for the movements of the invaders, and develop a strategy to deal with them.

Dialing down the movement speed, and adding multiple lives, would greatly help the game.

As to CORVID-19, it is not nearly as dangerous as the media has presented.
Fatality rates were boosted in the USA early on by an incident in an assisted living facility.
The high rate there in the over 80 population skewed the numbers.
How many of those that died to CORVID-19 wouldn't have lasted another 6 months anyway?
We'll never know, but likely most or all of them, and a quick passing is possibly a blessing.
A few days ago someone went to the ER with GSW to the head, the official cause of death is another gun violence statistic, but he wouldn't have shot himself if he didn't have terminal, systemic cancer. So in reality, the cancer is what killed him, because he wasn't up for going through chemo and radiation again, with little hope.

So what do the experts say is the death rate for those that have contracted CORVID-19?
Originally they were saying 24% for those over 80, 2-4% in the general population.
Now the general population figure is estimated to be something like 0.06% and that number is admittedly probably still high due to the number of mild cases that go undetected and unreported.

As a single event: it is pretty traumatic mentally to the population, with 88k deaths, but Corona viruses only hit like this about once every 10 years. So the annual average is something like 9k, vs 20-30k for the normal flu, making this statistically less impactful on the population.

Some other reference numbers might help to put it into context:
approximately 100k die each year from medical mistakes
another similar number die from smoking related issues.

Heart disease: 647,457
Cancer: 599,108
Accidents (unintentional injuries): 169,936
Chronic lower respiratory diseases: 160,201

These last 4 were taken from the CDC's web site.
The 4th one, lower respiratory, is what CORVID-19 targets.

Conclusion: Yes, take precautions, but don't panic.
And keep developing games.
You've managed to get the hard parts done:
1) make a working program
2) figure out how to post it on new grounds

A bit rough.
I would suggest working on the sound design and slowing the hair trigger movement.
The movement might make more sense on a touch screen, so if that's your target market that scans.
Multiple lives might make the experince feel a bit less fragile, and possibly more experssive or threating enemies would really tie it together.
Keep working, and thank you for making this.

It looks pretty good, but after a while the spaceships stop coming, and when I move left or right, the ship moves straight to the right side and left side of the screen.