feat(lsp): refactor

* Move configs into config subdirectory
 * Move LSP logic into classes
 * Make it possible to define mason package in lsp config,
   including nested dependency resolution and post install
   steps
 * replace jedi_language_server with pylsp

lua/lsp/config/groovyls.lua

@@ -0,0 +1,35 @@
+--[[
+    Copyright 2023 Oscar Wallberg
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        https://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+]]
+
+return {
+    enable = false,
+    dependencies = {
+        "java",
+    },
+    mason = {
+        name = "groovy-language-server",
+        -- version = "",
+    },
+    lspconfig = {
+        filetypes = {
+            "groovy",
+        },
+        cmd = {
+            "groovy-language-server",
+        },
+        single_file_support = true,
+    },
+}