Making the data for forms an autocomplete disabled

**Describe the bug**
There's history of searched items visible over clicking on all the buttons of form, it should be kept "autocomplete off" to prevent it from invading privacy of user. Also it takes cookies data, which displays vague items searched by user in context to some other search bar history of user.
Screenshot:

**To Reproduce**
Steps to reproduce the behavior:
1. Go to 'donate'
2. Click on any data input field
3. See error

**Expected behavior**
It should'nt display stored data of user for privacy.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**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]

**Additional context**
Add any other context about the problem here.