Fix: Fixed double file extension in zip

[shourav9884]

Earlier, files inside the zip file (when we are downloading all) was being name with double extension (#9 )
Before:

Now it is fixed

[colbyfayock]

hey thanks for the PR. it looks like the fix though ends up trimming too much from the name

im trying to think of why im adding the additional format in the first place if the name already has the extension... perhaps you can think of a situation where the name wouldn't include? if they were uploading a file without the extension? but i would consider that an edge case

i think a better route may be to:

• continue with the split, but only pop off the last segment, which would be the format, then rejoin (the risk is we're assuming there's a format on there
• a better route may be to check if the format that will be applied already exists

let downloadName = name;

if ( !downloadName.endsWith(`.${format}`) {
downloadName = `${downloadName}.${format}`
}

wdyt?

[shourav9884]

yes... my commit does not work that fine.. but checking name ending with format is not also bug-proof. Sometimes when we upload file with jpeg extension (for example: test1.jpeg). we are getting jpg as extension.