rework: open_float_terminal uses table instead of string

fix: all languages now use proper terminal setup

lua/Polydev/languages/rust.lua

@@ -1,19 +1,11 @@
 local utils = require("Polydev.utils")
 local M = {}
 
-M.keybinds = {}
-M.opts = {}
-
-function M.setup(opts)
-    M.opts = vim.tbl_deep_extend("force", {}, require("Polydev.configs").get("rust"), opts or {})
-    for key, command in pairs(M.opts.keybinds) do
-	M.keybinds[command] = key
-    end
-
+function M.setup(user_opts)
+    local opts = vim.tbl_deep_extend("force", {}, require("Polydev.configs").get("rust"), user_opts or {})
     vim.api.nvim_create_user_command("RustRun", M.run, {})
-
-    if M.keybinds.RustRun then
-	vim.keymap.set("n", M.keybinds.RustRun, ":RustRun<CR>", { silent = true })
+    for key, _ in pairs(opts.keybinds) do
+	vim.keymap.set("n", key, ":RustRun<CR>", { silent = true })
     end
 end
 
@@ -21,11 +13,10 @@ function M.run()
     local root = utils.get_project_root()
     if not root then return print("Error: Project root not found.") end
 
-    local cmd = "cargo build"
-    local output = vim.fn.system(cmd)
-    local success = vim.v.shell_error == 0
+    local cmd = { "cargo build" }
+    local output = vim.fn.system(table.concat(cmd))
 
-    if not success then
+    if not vim.v.shell_error == 0 then
 	local term_buf = utils.open_float_terminal(cmd)
 	vim.api.nvim_buf_set_option(term_buf, "modifiable", true)
 	vim.api.nvim_buf_set_lines(term_buf, 0, -1, false,
@@ -33,7 +24,7 @@ function M.run()
 	)
 	vim.api.nvim_buf_set_option(term_buf, "modifiable", false)
     else
-	utils.open_float_terminal("cargo run")
+	utils.open_float_terminal({ "cargo run" })
     end
 end