Migrate to native lsp config and other misc stuff

lua/lsp/yamlls.lua

@@ -1,19 +0,0 @@
-return {
-    settings = {
-        yaml = {
-            schemaStore = {
-                -- You must disable built-in schemaStore support if you want to use
-                -- this plugin and its advanced options like `ignore`.
-                enable = false,
-                -- Avoid TypeError: Cannot read properties of undefined (reading 'length')
-                url = "",
-            },
-            schemas = require('schemastore').yaml.schemas(),
-        },
-        redhat = {
-            telemetry = {
-                enabled = false
-            }
-        }
-    },
-}