Improve clear_stl for lualine

lualine seems to be setting the local statusline option for almost all
windows [0].

This patch mostly fixes the problem, but there is only one slight issue
remaining with command mode, but apparently that seems to be an issue
with lualine itself too [1].

See [2] for more info.

[0] https://github.com/nvim-lualine/lualine.nvim/blob/2ac8d77575926d5c22f1d13f3e48000d579277e3/lua/lualine.lua#L421
[1] https://github.com/nvim-lualine/lualine.nvim/blob/2ac8d77575926d5c22f1d13f3e48000d579277e3/lua/lualine.lua#L330
[2] commit 8cc0de6

Seems to help with #51

P.S. Fuck lualine

Author: vimpostor

autoload/tpipeline.vim

@@ -35,10 +35,9 @@ func tpipeline#build_hooks()
 		if empty(g:tpipeline_statusline) && !g:tpipeline_tabline
 			if g:tpipeline_clearstl
 				if tpipeline#util#is_lualine()
-					au OptionSet statusline call tpipeline#util#clear_stl()
-				else
-					au OptionSet statusline if v:option_type == 'global' | call tpipeline#util#clear_stl() | endif
+					au OptionSet statusline if v:option_type == 'local' | call tpipeline#util#clear_all_stl() | endif
 				endif
+				au OptionSet statusline if v:option_type == 'global' | call tpipeline#util#clear_stl() | endif
 			endif
 			au OptionSet statusline call tpipeline#update()
 		endif

autoload/tpipeline/util.vim

@@ -34,3 +34,10 @@ func tpipeline#util#is_lualine()
 	" lualine doesn't play nice, so it needs extra workarounds
 	return has('nvim') && !empty(nvim_get_autocmds(#{group: "lualine"}))
 endfunc
+
+func tpipeline#util#clear_all_stl()
+	for i in range(1, tabpagewinnr(tabpagenr(), '$'))
+		call win_execute(win_getid(i), 'setlocal stl<')
+	endfor
+	redrawstatus!
+endfunc