fix(lib/highlight): Ignore invalid highlight keys #75
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If a user sets colour scheme to default after Neovim starts,
nvim_get_hl_by_name('HydraRed', true) returns { [true] = 6 }. This
causes an 'invalid key' error later when it's used in nvim_set_hl().
It is quite a rare case, and it should be fine as long as we can avoid
the error, so that Hydra still functions.
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3e0c066fix(lib/highlight): Ignore invalid highlight keysIf a user sets colour scheme to default after Neovim starts,
nvim_get_hl_by_name('HydraRed', true) returns { [true] = 6 }. This
causes an 'invalid key' error later when it's used in nvim_set_hl().
It is quite a rare case, and it should be fine as long as we can avoid
the error, so that Hydra still functions.
Fixes #70