added test for update product in fridge and wast product in fridge. also change a tiny bit in the update in fridge service

Merge branch 'test/271-group-entity-and-fridge-achivements-services-test' of gitlab.stud.idi.ntnu.no:idatt2106-v23-03/backend into test/271-group-entity-and-fridge-achivements-services-test

Resolve "fix group controller tests"

Closes #269

See merge request idatt2106-v23-03/backend!217

Resolve "fix group controller tests"

Closes #269

See merge request idatt2106-v23-03/backend!216

Resolve "finish authorizing the shoppinglist endpoints"

Closes #268

See merge request idatt2106-v23-03/backend!215

Resolve "fix authentication on shopping list endpoints"

Closes #266

See merge request idatt2106-v23-03/backend!212

All the bugs related to the alogrithms was fixed

Closes #263

See merge request idatt2106-v23-03/backend!214

fix weekly menu

Closes #263

See merge request idatt2106-v23-03/backend!213

Resolve "Fix money from fridge to waste"

Closes #264

See merge request idatt2106-v23-03/backend!211

Resolve "fix authentication on get fridge endpoints"

Closes #261

See merge request idatt2106-v23-03/backend!210

Added validation of amount and days parameters in fridge to not take negative numbers

Closes #258

See merge request idatt2106-v23-03/backend!209

Resolve "add star recipe endpoint"

Closes #257

See merge request idatt2106-v23-03/backend!206

Resolve "Change default price for products"

Closes #259

See merge request idatt2106-v23-03/backend!208

Group default level was added

Closes #253

See merge request idatt2106-v23-03/backend!207