Fix missing detection progress indicator on camera load

Signed-off-by: Justin Georgi <justin.georgi@gmail.com>

src/pages/detect.vue

@@ -567,8 +567,10 @@
           if (this.videoAvailable) {
             this.cameraStream.getTracks().forEach( t => t.stop())
             this.videoAvailable = false
+            this.detecting = true
             resolve(searchImage)
           } else if (this.isCordova && this.imageLoadMode == "camera") {
+            this.detecting = true
             resolve('data:image/jpg;base64,' + searchImage)
           } else {
             const searchImage = this.$refs.image_chooser.files[0]