Remove Bootstrap3 (#1123)

## Fixes issue

Migrates off bootstrap3 and into bootstrap5. Thank you @psjalltheway !!!

## Description of Changes

Removes deprecated files which are causing conflicts for the new
HTML/CSS which will come in a separate PR.

## Notes for Deployment


## Screenshots (if appropriate)


## Tests and Linting
- [x] This branch is up-to-date with the `develop` branch.
- [x] `pytest` passes on my local development environment.
- [x] `pre-commit` passes on my local development environment.

---------

Co-authored-by: psjalltheway <[email protected]>
Co-authored-by: sea-kelp <[email protected]>

Makefile

@@ -12,7 +12,7 @@ build_with_version: create_empty_secret
 	docker compose build --build-arg MAKE_PYTHON_VERSION=$(PYTHON_VERSION)
 
 .PHONY: test_with_version
-test_with_version: build_with_version assets
+test_with_version: build_with_version
 	touch OpenOversight/tests/coverage.xml
 	docker compose run --rm web-test pytest --cov=OpenOversight --cov-report xml:OpenOversight/tests/coverage.xml --doctest-modules -n 4 --dist=loadfile -v OpenOversight/tests/
 
@@ -31,10 +31,6 @@ create_db: start
 	## Creating database
 	docker compose run --rm web alembic --config=./OpenOversight/migrations/alembic.ini stamp head
 
-.PHONY: assets
-assets:
-	docker compose run --rm web yarn build
-
 .PHONY: dev
 dev: create_empty_secret build start create_db populate
 
@@ -62,18 +58,14 @@ test: start
 lint:
 	pre-commit run --all-files
 
-.PHONY: clean_assets
-clean_assets:
-	rm -rf ./OpenOversight/app/static/dist/
-
 # Stop containers
 .PHONY: stop
 stop:
 	docker compose stop
 
 # Remove containers
 .PHONY: clean
-clean: clean_assets stop
+clean: stop
 	docker compose rm -f
 
 # Wipe database