Fix web client backend calls

[abdullahmorrison]

This will solve #2, #5, #7, #8, #9, #11

[abdullahmorrison]

API calls

• [x] get scales
• [x] update scale slider value
• [x] reorder scale
• [x] add scale
• [x] delete scale
• [x] update avoiding failure / chasing success descriptions
• [x] update goal