Feat/excel (#45)

* add dependency

adding dependency to parse the excel file in the node side

* import file

ability to import file
- add extension
- safeguard file type and size

* user is able to upload json or excel

* chore: extract logic into self contained function

* associate model with version

* test id generation

* parse excel data

* prevent UI crash on bad data

* extract validation into self contained function

* chore: add more tests for bad data

* config: stop from opening browser on start

* fix comma in sample db

* handle corrupt files

* error boundary around main components

* jsdocs

* increase id length

* parse excel time string

* feat: excel parsing

* validate json db before import

* chore: test event validator

* feat: make function to clean convert strings

* chore: test parser

* chore: jsdocs

* fix: bug on upload

prevent bug where the component would prevent upload of same file twice

server/src/controllers/eventsController.js

@@ -2,8 +2,7 @@
 import { db, data } from '../app.js';
 
 // utils
-import { customAlphabet } from 'nanoid';
-const nanoid = customAlphabet('1234567890abcdef', 4);
+import { generateId } from '../utils/generate_id.js';
 import {
   event as eventDef,
   delay as delayDef,
@@ -98,7 +97,7 @@ export const eventsPost = async (req, res) => {
 
   // ensure structure
   let newEvent = {};
-  req.body.id = nanoid();
+  req.body.id = generateId();
 
   switch (req.body.type) {
     case 'event':