Added "Tako" theme (#5546)

* Added "Ninomae" theme

Based on the lovely Ninomae Ina'nis, for Arkon and Flat

* Use updated colors from Ghostbear

Adapted after feedback

Co-Authored-By: Andreas <6576096+ghostbear@users.noreply.github.com>

* Tweak the Ninomae theme further

* Sort themes alphabetically

- Sorts themes alphabetically.
- Use the same capital word system in colors.xml for themes.xml as well.
- Rename AMOLED theme to AMOLED mode in theme.xml and color.xml references.

* More tweaks

* Style incognito bar

Uses a dark purple which looks super clean instead of a washed out gray

This sets the groundwork for other themes too

* Tweak final onPrimary color

* Rename Ninomae to Tako

RIP

Co-authored-by: Andreas <6576096+ghostbear@users.noreply.github.com>

app/src/main/res/layout-sw720dp/main_activity.xml

@@ -52,7 +52,7 @@
             android:id="@+id/incognito_mode"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
-            android:background="@color/md_grey_800"
+            android:background="?attr/incognitoBackgroundColor"
             android:visibility="gone"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"