Add charts to display site measurements for each pollutant

[amehta-scottlogic]

Description

This PR adds in site measurement charts showing individual site readings for each pollutant for a city

There is probably still quite a lot to be done here - but it might just have to be the first pass until we get some feedback

All charts

https://github.com/ECMWFCode4Earth/vAirify/assets/110030119/65763dec-beef-44cd-8754-f44c7a47d88b

Site selection

https://github.com/ECMWFCode4Earth/vAirify/assets/110030119/1434d87d-1e07-4b19-b23d-45dcd8301ab1

[github-actions[bot]]

Coverage report for air-quality-ui

St.:grey_question:	Category	Percentage	Covered / Total
🟢	Statements	98.26%	282/287
🟢	Branches	97.5% (+1.01% 🔼)	78/80
🟢	Functions	93.51% (+3.92% 🔼)	72/77
🟢	Lines	98.08%	255/260

Show new covered files 🐣

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St.^{:grey_question:}

| File | Statements | Branches | Functions | Lines | | :---------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------ | :--------- | :------- | :-------- | :---- | | 🟢 |

`...` / fetch-common.ts

| 100% | 100% | 100% | 100% | | 🟢 |

`...` / echarts-service.ts

| 100% | 100% | 100% | 100% | | 🟢 |

`...` / AverageComparisonChart.tsx

| 100% | 100% | 100% | 100% | | 🟢 |

`...` / SiteMeasurementsChart.tsx

| 100% | 100% | 100% | 100% | | 🟢 | context.ts | 100% | 100% | 100% | 100% | | 🟢 |

`...` / LoadingSpinner.tsx

| 100% | 100% | 100% | 100% |

Show files with reduced coverage 🔻

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St.^{:grey_question:}

| File | Statements | Branches | Functions | Lines | | :---------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------- | :------------------------------------------------------------ | :----------------------------------------------------------- | :----------------------------------------------------------- | :------------------------------------------------------------ | | 🟢 |

`...` / SingleCity.tsx

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96.88% (+5.57% 🔼)

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90.91% (-9.09% 🔻)

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89.47% (+39.47% 🔼)

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96.77% (+5.47% 🔼)

| | 🟢 |

`...` / GlobalSummary.tsx

| 85% | 100% | 25% | 85% |

Test suite run success

63 tests passing in 15 suites.

Report generated by 🧪jest coverage report action from 343a6721493f91dcda530d2387f09c6a908201c2