Download fixes (#63)

* refactor: Rename StoredManifest to DropData

Signed-off-by: quexeky <git@quexeky.dev>

* fix: Downloads when resuming would truncate files which had not been finished

Signed-off-by: quexeky <git@quexeky.dev>

* chore: Didn't import debug macro

Signed-off-by: quexeky <git@quexeky.dev>

* fix: Download chunks with wrong indexes

Migrated to using checksums as indexes instead

Signed-off-by: quexeky <git@quexeky.dev>

* feat: Resume download button

Also added DBWrite and DBRead structs to make database management easier

Signed-off-by: quexeky <git@quexeky.dev>

* feat: Download resuming

Signed-off-by: quexeky <git@quexeky.dev>

* feat: Resume button and PartiallyInstalled status

Signed-off-by: quexeky <git@quexeky.dev>

* feat: Download validation

Signed-off-by: quexeky <git@quexeky.dev>

* chore: Ran cargo fix & cargo fmt

Signed-off-by: quexeky <git@quexeky.dev>

* fix: download validation, installs, etc

* chore: version bump

---------

Signed-off-by: quexeky <git@quexeky.dev>
Co-authored-by: quexeky <git@quexeky.dev>

desktop/src-tauri/src/error/application_download_error.rs

@@ -25,7 +25,7 @@ impl Display for ApplicationDownloadError {
             ApplicationDownloadError::Setup(error) => write!(f, "an error occurred while setting up the download: {}", error),
             ApplicationDownloadError::Lock => write!(f, "failed to acquire lock. Something has gone very wrong internally. Please restart the application"),
             ApplicationDownloadError::Checksum => write!(f, "checksum failed to validate for download"),
-            ApplicationDownloadError::IoError(error) => write!(f, "{}", error),
+            ApplicationDownloadError::IoError(error) => write!(f, "io error: {}", error),
             ApplicationDownloadError::DownloadError => write!(f, "download failed. See Download Manager status for specific error"),
         }
     }