chore: update extensions to have empty section_c so transitional separators can work

closes #23

lua/lualine/extensions/fugitive.lua

@@ -6,8 +6,14 @@ local function fugitive_branch()
   local icon = '' -- e0a0
   return icon .. ' ' .. vim.fn.FugitiveHead()
 end
+local empty = {function() return ' ' end, left_padding=0, right_padding=0}
 
-M.sections = {lualine_a = {fugitive_branch}, lualine_z = {'location'}}
+
+M.sections = {
+  lualine_a = {fugitive_branch},
+  lualine_c = {empty},
+  lualine_z = {'location'}
+}
 
 M.filetypes = {'fugitive'}
 

lua/lualine/extensions/fzf.lua

@@ -1,10 +1,14 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
 local function fzf_statusline() return 'FZF' end
+local empty = {function() return ' ' end, left_padding=0, right_padding=0}
 
 local M = {}
 
-M.sections = {lualine_a = {fzf_statusline}}
+M.sections = {
+  lualine_a = {fzf_statusline},
+  lualine_c = {empty}
+}
 
 M.filetypes = {'fzf'}
 

lua/lualine/extensions/nerdtree.lua

@@ -1,10 +1,14 @@
 -- Copyright (c) 2020-2021 hoob3rt
 -- MIT license, see LICENSE for more details.
 local function get_short_cwd() return vim.fn.fnamemodify(vim.fn.getcwd(), ':~') end
+local empty = {function() return ' ' end, left_padding=0, right_padding=0}
 
 local M = {}
 
-M.sections = {lualine_a = {get_short_cwd}}
+M.sections = {
+  lualine_a = {get_short_cwd},
+  lualine_c = {empty}
+}
 
 M.filetypes = {'nerdtree'}
 

lua/lualine/extensions/quickfix.lua

@@ -15,6 +15,7 @@ local function title()
   end
   return vim.fn.getqflist({title = 0}).title
 end
+local empty = {function() return ' ' end, left_padding=0, right_padding=0}
 
 local M = {}
 
@@ -26,6 +27,7 @@ end
 M.sections = {
   lualine_a = {label},
   lualine_b = {title},
+  lualine_c = {empty},
   lualine_z = {'location'}
 }
 

lua/lualine/extensions/toggleterm.lua

@@ -2,10 +2,14 @@
 -- MIT license, see LICENSE for more details.
 
 local function toggleterm_statusline() return 'ToggleTerm #' .. vim.b.toggle_number end
+local empty = {function() return ' ' end, left_padding=0, right_padding=0}
 
 local M = {}
 
-M.sections = {lualine_a = {toggleterm_statusline}}
+M.sections = {
+  lualine_a = {toggleterm_statusline},
+  lualine_c = {empty}
+}
 
 M.filetypes = {'toggleterm'}