feat(nvim): reorganize and modernize Neovim configuration

- Remove deprecated config files: git-ref.lua, git-signs.lua, diffview-config.lua, lsp-lines-config.lua, neotree-config.lua, fidget-spinner.lua, silicon-config.lua, telescope-config.lua, llm.lua
- Add new configuration files: diagnostics-config.lua, git-config.lua, llm-config.lua, snacks-config.lua
- Update existing config files: base.lua, dap-config.lua, init.lua, lsp-config.lua, lualine-config.lua, noice-config.lua, octo-config.lua, toggleterm-config.lua, which-key-config.lua
- Update nvim and opencode module configurations

modules/home/programs/terminal/nvim/config/lua/toggleterm-config.lua

@@ -1,20 +1,20 @@
-require("toggleterm").setup({open_mapping = [[<c-\>]]})
-
--- Get PR status on terminal load
--- require("toggleterm").setup({
---     open_mapping = [[<c-\>]],
---     on_create = function(term)
---         vim.cmd("startinsert")
---         term:send("gh pr checks")
---     end
--- })
-
--- Duplicate C-w & Esc Behavior
-function _G.set_terminal_keymaps()
-    local opts = {buffer = 0}
-    vim.opt.signcolumn = "no"
-    vim.keymap.set('t', '<esc>', [[<C-\><C-n>]], opts)
-    vim.keymap.set('t', '<C-w>', [[<C-\><C-n><C-w>]], opts)
-end
-
-vim.cmd('autocmd! TermOpen term://* lua set_terminal_keymaps()')
+-- require("toggleterm").setup({open_mapping = [[<c-\>]]})
+--
+-- -- Get PR status on terminal load
+-- -- require("toggleterm").setup({
+-- --     open_mapping = [[<c-\>]],
+-- --     on_create = function(term)
+-- --         vim.cmd("startinsert")
+-- --         term:send("gh pr checks")
+-- --     end
+-- -- })
+--
+-- -- Duplicate C-w & Esc Behavior
+-- function _G.set_terminal_keymaps()
+--     local opts = {buffer = 0}
+--     vim.opt.signcolumn = "no"
+--     vim.keymap.set('t', '<esc>', [[<C-\><C-n>]], opts)
+--     vim.keymap.set('t', '<C-w>', [[<C-\><C-n><C-w>]], opts)
+-- end
+--
+-- vim.cmd('autocmd! TermOpen term://* lua set_terminal_keymaps()')