[docs] Move preserving folder structure into its own subsection

docs/docs/photos/features/albums.md

@@ -5,8 +5,48 @@ description: Using albums in Ente Photos
 
 # Albums
 
-Make the most of your albums and personalize them to your preferences with these
-simple yet effective features.
+## Preserving folder structure
+
+When you upload photos and videos into Ente using the desktop app - whether by
+dragging and dropping a folder or zip file (or selecting it in the "Upload"
+selector), or by setting up a [folder watch](/photos/features/watch-folders) -
+the app will provide you various options.
+
+### Uploading files or a folder without nesting
+
+If you are trying to just upload some files, then the app will provide you a
+selector where you can choose to (a) uploads all the files to an existing Ente
+album, or (b) create a new album.
+
+Similarly, if you upload a folder without any nested folders, than the app will
+ask if you want to upload them to an existing Ente album, or create a new album.
+
+The app will also try to intelligently determine the name of the new album.
+
+### Uploading a nested folder
+
+If the folder you're trying to upload has nesting and you select the option to
+create a new album, you will see two options - **A single album** and **Separate
+albums**.
+
+-   **Single album** will create a new Ente album with the same name as the
+    folder's name, and will then sync all the changes in the folder (and any
+    nested folders) to this single album.
+
+-   **Separate albums** will create separate albums for each nested folder of
+    the selected folder, and will then sync the changes in each nested folder
+    separately.
+
+-   For example, suppose you have a folder name `Photos` on your computer, and
+    inside that folder you have two nested folders named `New Year` and
+    `Summer`. In the single album mode, the app will create an Ente album named
+    "Photos" and put all the files from both `New Year` and `Summer` there. In
+    the separate album mode, the app will create two Ente albums, "New Year" and
+    "Summer", each only containing the respective files.
+
+-   In separate album mode, only nested folders that have at least one file will
+    result in the creation of a new album – empty folders (or folders that only
+    contain other folders) will be ignored.
 
 ## Rename album
 

docs/docs/photos/features/watch-folders.md

@@ -30,29 +30,11 @@ allows you to automate backups to ente's cloud.
    drag and drop the folder here.
 
 3. If the folder has nesting, you will see two options - **A single album** and
-   **Separate albums**.
-
-    - **Single album** will create a new Ente album with the same name as the
-      folder's name, and will then sync all the changes in the folder (and any
-      nested folders) to this single album.
-
-    - **Separate albums** will create separate albums for each nested folder of
-      the selected folder, and will then sync the changes in each nested folder
-      separately.
-
-    - For example, suppose you have a folder name `Photos` on your computer, and
-      inside that folder you have two nested folders named `New Year` and
-      `Summer`. In the single album mode, the app will create an Ente album
-      named "Photos" and put all the files from both `New Year` and `Summer`
-      there. In the separate album mode, the app will create two Ente albums,
-      "New Year" and "Summer", each only containing the respective files.
-
-    - In separate album mode, only nested folders that have at least one file
-      will result in the creation of a new album – empty folders (or folders
-      that only contain other folders) will be ignored.
+   **Separate albums**. This work similarly to the
+   [options you see when you drag and drop a folder with nested folders](/photos/features/albums#preserving-folder-structure).
 
 4. After choosing any of the above options, the folder will be initially synced
-   to ente's cloud and monitored for any changes. You can now close the dialog
+   to Ente's cloud and monitored for any changes. You can now close the dialog
    and the sync will continue in background.
 
 5. When the app is syncing in the background it'll show a small progress status