feat(LSP): Move all server settings file into same directory

Group all the files corresponding to servers' specific settings, to the
same directory.

nvim/lua/lsp/server_settings/init.lua

@@ -1,7 +1,7 @@
 local opts = {}
-opts.pylsp = require("python_lsp_server_settings")
-opts.hls = require("haskell_lsp_server_settings")
-opts.fortls = require("fortran_lsp_server_options")
+opts.pylsp = require("lsp.server_settings.pylsp")
+opts.hls = require("lsp.server_settings.hls")
+opts.fortls = require("lsp.server_settings.fortls")
 
 local workspace_conf_file = vim.fn.findfile(".nvim/lsp-server-conf.lua", ".;")
 if workspace_conf_file ~= "" then

nvim/lua/lsp/server_settings/pylsp.lua

@@ -1,5 +1,5 @@
 local pylsp_settings = {
-    configurationSources = {"flake8", "pycodestyle"},  -- config files to read from, not plugins enabled
+    configurationSources = { "flake8", "pycodestyle" },  -- config files to read from, not plugins enabled
     plugins = {
         flake8 = {
             enabled = true,
@@ -12,13 +12,13 @@ local pylsp_settings = {
                 "--max-line-length=79",
                 "--disable=missing-docstring,invalid-name,redefined-outer-name,logging-format-interpolation",
                 "--disable=line-too-long,trailing-whitespace,trailing-newlines",  -- Checked by flake8
-            }
+            },
         },
-        pylsp_mypy = {enabled = true},
-        pycodestyle = {enabled = false},  -- covered in flake8
-        pyflakes = {enabled = false},  -- covered in flake8
-        -- mccabe = {enabled = false},  -- not covered in flake8 by default; PyLSP doesn't handle the option
-    }
+        pylsp_mypy = { enabled = true },
+        pycodestyle = { enabled = false },  -- covered in flake8
+        pyflakes = { enabled = false },  -- covered in flake8
+        -- mccabe = { enabled = false },  -- not covered in flake8 by default; PyLSP doesn't handle the option
+    },
 }
 
 local venv_dir = vim.fn.finddir(".venv/", vim.fn.expand("%:p:h") .. ";")