refactor: reorganize imports and improve dependency injection decorators; add tests for TSinjex functionality

Signed-off-by: Max P. <Mail@MPassarello.de>

.vscode/settings.json

@@ -0,0 +1,9 @@
+{
+    "editor.tabSize": 4,
+    "editor.insertSpaces": true,
+    "deno.enable": true,
+    "editor.formatOnSave": true,
+    "editor.defaultFormatter": "denoland.vscode-deno",
+    "editor.detectIndentation": false,
+    "editor.indentSize": "tabSize"
+}