Bug fixes relating to image dimensions

[mehulkaklotar]

Requirements

• Remove double slashes in the file url when rendered
• A missing string cast causes dimensions to be lost from some SVGs.
• A bug with srcsets breaks square SVGs entirely in Chrome. - We will not fix it as it crosses with WP.

Description of the Change

• For newer uploads we have fixed the double slash being added in svg file url
• Float value casting fix for svgs when fetching width and height.

Alternate Designs

No alternate designs.

Benefits

• SVG uploaded without viewbox will be rendered properly on front end.

Possible Drawbacks

No drawback.

Verification Process

• Upload SVG in Media and see that attachment meta has now proper file path which should be 2022/01/FILENAME.svg
• Float cast of width and height when fetching svg sizes gives correct width and height when rendering.

Checklist:

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests passed.

Applicable Issues

#15

Changelog Entry

[darylldoyle]

This looks good to me!