Minor text change to Download Data button

[jamesharle]

I'm submitting a ...

Check one of the following options with "x" and add the appropriate label to the issue as well

[X] Bug report 
[ ] Regression (behaviour that used to work and stopped working in a new release)

Describe the Issue
The Download Data button should be amended to Download data for consistency with the Share button.

Sorry, very minor - but thought best to raise here on GH. Hope you won't mind me skipping the further details below, seems like overkill...

To Reproduce
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2. Click on '....'
3. Scroll down to '....'
4. See error

Expected Behaviour
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Screenshots/GIF
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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Environment/Server:

- [ ] Production
- [ ] Staging
- [ ] Test
- [ ] Development

Additional Context
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Requested Delivery Date: dd/MMM/YYYY

[edwinmp]

Thanks @jamesharle ... will correct :)