- implementing redux slices for backend functions
- creating basic input components
- start topbar component
- move functionality and state out of App.tsx
- make eslint less annoying
- move a lot of deps to devDependencies in package.json
- temporarily removing nanoid from dependencies (at least until needed)
- cleaning up App.tsx a lot
- implementing runtime formatting functions
- add util module

 Changes committed:
	modified:   .eslintrc.cjs
	modified:   backend/src/main.rs
	new file:   backend/src/util/format.rs
	new file:   backend/src/util/mod.rs
	modified:   package.json
	modified:   src/App.tsx
	new file:   src/components/common/Button.tsx
	new file:   src/components/common/Input.tsx
	new file:   src/components/common/base/ButtonBase.tsx
	new file:   src/components/common/base/InputBase.tsx
	new file:   src/components/common/base/styles.module.scss
	new file:   src/components/common/styles.module.scss
	new file:   src/components/topbar/PlayPauseButton.tsx
	new file:   src/components/topbar/TempoInput.tsx
	new file:   src/components/topbar/Topbar.tsx
	new file:   src/components/topbar/TopbarBase.tsx
	new file:   src/components/topbar/TopbarTimer.tsx
	new file:   src/hooks/redux.ts
	modified:   src/index.tsx
	deleted:    src/reportWebVitals.ts
	new file:   src/state/slices/playPausePlaylistSlice.ts
	new file:   src/state/slices/playlistMetronomeEnabledSlice.ts
	new file:   src/state/slices/playlistRuntimeSlice.ts
	new file:   src/state/slices/playlistTempoSlice.ts
	modified:   src/state/store.ts
	modified:   tsconfig.json

…functions to async