Frontend/feature/submission post (#150)

* added dependencies for treeview and code viewer

* created drag and drop upload, treeview and code viewer

* Fix #10

* removed unused dependencies

* created files utils with zip regex checker

* moved function to utils

* removed unused eslint rule

* corrected message on missing required files

* consistent frontend text

* fixed grammar

* resolved package diff

frontend/.eslintrc.cjs

@@ -40,7 +40,6 @@ module.exports = {
     "jsdoc/require-param": 0,
     "jsdoc/require-param-description": 1,
     "jsdoc/require-param-name": 1,
-    "jsdoc/require-param-type": 0,
     "jsdoc/require-property": 1,
     "jsdoc/require-property-description": 1,
     "jsdoc/require-property-name": 1,