fix(neovim): LSP, Formatter, Linter all in their places

- Formatter: Don't need both prettier & prettierd. Only use prettierd
- Formatter: markdown-toc is LSP not formatter
- Formatter: shellharden isn't formatter
- Formatter: Only shfmt for shell formatting
- Formatter: Don't need prettier to format yaml
- Linter: codespell on all buffers
- Install script: Remove prettier & shellharden (its useless with bashls)
- LSP: markdownlint, prettier, shellcheck, shellharden, shfmt aren't LSP

common/.config/nvim/lsp/markdownlint.lua

@@ -1,4 +0,0 @@
-return {
-    cmd = { "markdownlint-language-server", "--stdio" },
-    filetypes = { "markdown" },
-}

common/.config/nvim/lsp/prettier.lua

@@ -1,13 +0,0 @@
-return {
-    cmd = { "prettier", "--lsp" },
-    filetypes = {
-        "javascript",
-        "typescript",
-        "css",
-        "scss",
-        "html",
-        "json",
-        "yaml",
-    },
-    root_markers = { ".prettierrc", "package.json" },
-}

common/.config/nvim/lsp/shellcheck.lua

@@ -1,4 +0,0 @@
-return {
-    cmd = { "shellcheck", "--format=json", "-" },
-    filetypes = { "sh", "bash", "zsh" },
-}

common/.config/nvim/lsp/shellharden.lua

@@ -1,4 +0,0 @@
-return {
-    cmd = { "shellharden", "--suggest" },
-    filetypes = { "sh", "bash", "zsh" },
-}

common/.config/nvim/lsp/shfmt.lua

@@ -1,4 +0,0 @@
-return {
-    cmd = { "shfmt", "-l", "-" },
-    filetypes = { "sh", "bash", "zsh" },
-}