fix(lsp): correct module path for rust_analyzer and jdtls

- Reverts the recent change that renamed the module paths for `rust_analyzer`
  and `jdtls` to use `lsp.settings`.
- Restores the correct paths under `lsp.servers` to match previous naming
  conventions and avoid startup errors.

Author: daephx

lua/plugins/mason.lua

@@ -65,11 +65,11 @@ return {
         end,
 
         ["rust_analyzer"] = function()
-          require("plugins/lsp/settings/rust_analyzer")
+          require("plugins/lsp/servers/rust_analyzer")
         end,
 
         ["jdtls"] = function()
-          require("plugins/lsp/settings/jdtls")
+          require("plugins/lsp/servers/jdtls")
         end,
       },
     },