feat: compute thumbhash for images (#596)

* feat: compute thumbhash for images

Signed-off-by: newt <hi@newty.dev>

* Merge branch 'main' into feat/thumbhash

Signed-off-by: newt <hi@newty.dev>

* style: move comment onto newline

Signed-off-by: newt <hi@newty.dev>

* feat: make thumbhash optional

Signed-off-by: newt <hi@newty.dev>

---------

Signed-off-by: newt <hi@newty.dev>
Signed-off-by: newt (: <hi@newty.dev>
Signed-off-by: Tom <iamtomahawkx@gmail.com>
Co-authored-by: Tom <iamtomahawkx@gmail.com>

crates/services/autumn/src/exif.rs

@@ -19,6 +19,7 @@ pub async fn strip_metadata(
         Metadata::Image {
             width,
             height,
+            thumbhash,
             animated,
         } => match mime {
             // // little_exif does not appear to parse JPEGs correctly? had 2/2 files fail
@@ -102,6 +103,7 @@ pub async fn strip_metadata(
                     Metadata::Image {
                         width,
                         height,
+                        thumbhash: thumbhash.clone(),
                         animated: *animated,
                     },
                 ))