User is able to input alphabet instead of amount after creating new material

[mmafrar]

Co-Author
@girlcrush95

Steps to reproduce

• Click on the Materials menu item from the Dashboard.
• Navigate to Materials Management page.
• Click on the Add Material button.
• Enter a non numeric value for price.
• Fill and submit Add New Materials modal.

Expected result
System should not allow to enter a non numeric value for price.

Actual result
System allows to enter a non numeric value for price.

Affected version
v1.7.2

Screenshot

[rmsonge]

Would like to be assigned this.