chore(main): release 2.0.0

:robot: I have created a release beep boop

add an option for map-grouping (7f93737)
add an option to show leader in mappings (a2b9372)
api: expose get_keys function (f3e2df4)
api: provide redraw function (a853a75)
config: show_leader is now true by default (f03995d)
config: add an option to customize <leader> symbol (7b54d74)
config: added types for options (da19003)
config: move keys to config (09f1692)
config: support (almost) all of the nvim_open_win opts (18ba235)
config: use api types for win_opts (805e958)
config: users can now specify row and col (2f16f53)
config: validate user config (9dfeffb)
health: :checkhealth screenkey support (e636ef3)
implement config module (c398ade)
init: no need to call setup function (8c56222)
introduce display_infront/behind (7ff6fb0)
logger: implement simple logger (86f3b00)
make the Screenkey window persistent (39af61f)
statusline-component: toggle statusline component (#19) (7806e34)
user commands: add various subcommands (b2cfe5e)
user commands: logger commands (3d585e6)
util: optional function for comparing values in tbl_contains (9fe269a)

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