PR for #87: Test Github-Overleaf workflow

[ShiqiYang2022]

Closes #87.

In issue #87 we did small fix of the run_latex() in gslab_make, and set up the widescreen aspect ratio in slides.tex.

This PR is opened to review the changes, I suggest to re-run the template on their own end and see (1) whether it successfully compiles; (2) whether the the widescreen ratio is correctly set-up(16:9). I am requesting @jc-cisneros @snairdesai to conduct the review.

[jc-cisneros]

@ShiqiYang2022 in step (1), everything ran correctly (even doing it twice without manually clearing anything):

Version logs successfully written!
Executing command: `pdflatex -output-directory=../latex_auxiliary_dir  "/Users/jccp/Documents/template/paper_slides/code/paper.tex"`
Executing command: `pdflatex -output-directory=../latex_auxiliary_dir  "/Users/jccp/Documents/template/paper_slides/code/online_appendix.tex"`
Executing command: `pdflatex -output-directory=../latex_auxiliary_dir  "/Users/jccp/Documents/template/paper_slides/code/slides.tex"`
Output logs successfully written!
Ending makelog file at: `/Users/jccp/Documents/template/paper_slides/log/make.log`

[snairdesai]

@ShiqiYang2022: Confirming (1) above also works as expected on my end; and I believe the aspect ratio in (2) is now also properly maintained. Thanks for the work!

[jc-cisneros]

Regarding (2), the slides seem to be in the correct ratio ($6.3:3.54 \approx 16:9$).

[jc-cisneros]

Both (1) and (2) worked on my end. Thanks @ShiqiYang2022!