refactor: use install.lua instead of install.sh

lua/Trans/core/install.lua

@@ -0,0 +1,42 @@
+return function()
+    -- INFO :Chceck ultimate.db exists
+    local dir = require('Trans').conf.dir
+    local path = dir .. '/ultimate.db'
+    if vim.fn.filereadable(path) == 1 then
+        vim.notify('Database already exists', vim.log.WARN)
+        return
+    else
+        vim.notify('Trying to download database', vim.log.INFO)
+    end
+
+
+    -- INFO :Download ultimate.db
+    local uri = 'https://github.com/skywind3000/ECDICT-ultimate/releases/download/1.0.0/ecdict-ultimate-sqlite.zip'
+    local loc = dir .. '/ultimate.zip'
+    require('plenary.curl').get(uri, {
+        output = loc,
+        callback = function(output)
+            if output.exsit == 0 and output.status == 200 then
+                if vim.fn.executable('unzip') == 0 then
+                    vim.notify('unzip not found, Please unzip ' .. loc .. 'manually', vim.log.ERROR)
+                    return
+                end
+
+                local cmd = string.format('unzip %s -d %s', path, dir)
+                os.execute(cmd)
+                os.remove(path)
+
+                vim.notify('Download database successfully', vim.log.INFO)
+                return
+            end
+
+            local debug_message = 'Download database failed:' .. vim.inspect(output)
+            vim.notify(debug_message, vim.log.ERROR)
+        end,
+    })
+
+    -- INFO : tts dependencies
+    if vim.fn.has('linux') == 0 and vim.fn.has('mac') == 0 then
+        os.execute('cd ./tts/ && npm install')
+    end
+end