NF: rename model to note type

As David mentioned recently, Anki don't use "model" anymore, it should
not be in the codebase.

There are two places where `model` should not be replaced. When the
variable refers to a model that is not a note type (e.g. a viewModel,
the Card Browser's model..). And when the word "model" appears in the
API. Indeed we should not break the existing code using the API.

While it may be considered to extend our API, duplicating the Model
commands to introduce a NoteType command with the same meaning. And,
maybe one day, deprecate the previous API. But I don't think there is
even a need to deprecate the API, it does not really lead to
confusion.

On top of replacing "model", "models", "Model", "Models", "MODEL",
"MODELS", we also rename the variables "m", "m2" and "mm" as those
variable where abbreviations for "Model". I renamed some layout, menu,

In one case, the documentation was wrong. It mentioned "model" instead
of "template". I thus replaced "model" by "template" in order to
correct the documentation.

Note that all the changes were done manually. I used Android-Studio to
rename function, variables, values and constant. But I generally
avoided the "search and replace" feature which may have led to
erroneous update. (Example of exception: `m` and `mm` in `modelTest`

AnkiDroid/src/androidTest/java/com/ichi2/anki/DeckPickerTest.kt

@@ -49,7 +49,7 @@ class DeckPickerTest : InstrumentedTest() {
 
     @Before
     fun before() {
-        addNoteUsingBasicModel()
+        addNoteUsingBasicNoteType()
         disableIntroductionSlide()
         discardPreliminaryViews()
     }

AnkiDroid/src/androidTest/java/com/ichi2/anki/PagesTest.kt

@@ -86,13 +86,13 @@ class PagesTest : InstrumentedTest() {
 fun PagesTest.getStatistics(context: Context): Intent = Statistics.getIntent(context)
 
 fun PagesTest.getCardInfo(context: Context): Intent =
-    addNoteUsingBasicModel().firstCard(col).let { card ->
+    addNoteUsingBasicNoteType().firstCard(col).let { card ->
         this.card = card
         CardInfoDestination(card.id).toIntent(context)
     }
 
 fun PagesTest.getCongratsPage(context: Context): Intent =
-    addNoteUsingBasicModel().firstCard(col).let { card ->
+    addNoteUsingBasicNoteType().firstCard(col).let { card ->
         this.card = card
         CardInfoDestination(card.id).toIntent(context)
     }

AnkiDroid/src/androidTest/java/com/ichi2/anki/ReviewerFragmentTest.kt

@@ -69,7 +69,7 @@ class ReviewerFragmentTest : InstrumentedTest() {
             states.good.normal.review.scheduledDays = 123;
             customData.good.c += 1;
             """
-        val note = addNoteUsingBasicModel("foo", "bar")
+        val note = addNoteUsingBasicNoteType("foo", "bar")
         val card = note.firstCard(col)
         val deck = col.decks.get(note.notetype.did)!!
         card.moveToReviewQueue()
@@ -107,7 +107,7 @@ class ReviewerFragmentTest : InstrumentedTest() {
         setNewReviewer()
         // Issue 15035 - runtime errors weren't handled
         col.cardStateCustomizer = "states.this_is_not_defined.normal.review = 12;"
-        addNoteUsingBasicModel()
+        addNoteUsingBasicNoteType()
 
         closeGetStartedScreenIfExists()
         closeBackupCollectionDialogIfExists()

AnkiDroid/src/androidTest/java/com/ichi2/anki/ReviewerTest.kt

@@ -88,7 +88,7 @@ class ReviewerTest : InstrumentedTest() {
             states.good.normal.review.scheduledDays = 123;
             customData.good.c += 1;
             """
-        val note = addNoteUsingBasicModel("foo", "bar")
+        val note = addNoteUsingBasicNoteType("foo", "bar")
         val card = note.firstCard(col)
         val deck = col.decks.get(note.notetype.did)!!
         card.moveToReviewQueue()
@@ -136,7 +136,7 @@ class ReviewerTest : InstrumentedTest() {
     fun testCustomSchedulerWithRuntimeError() {
         // Issue 15035 - runtime errors weren't handled
         col.cardStateCustomizer = "states.this_is_not_defined.normal.review = 12;"
-        addNoteUsingBasicModel()
+        addNoteUsingBasicNoteType()
 
         closeGetStartedScreenIfExists()
         closeBackupCollectionDialogIfExists()

AnkiDroid/src/androidTest/java/com/ichi2/anki/dialogs/ModelEditorContextMenuTest.kt → AnkiDroid/src/androidTest/java/com/ichi2/anki/dialogs/NoteTypeEditorContextMenuTest.kt

@@ -23,25 +23,25 @@ import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
 import androidx.test.espresso.matcher.ViewMatchers.withText
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import com.ichi2.anki.R
-import com.ichi2.anki.dialogs.ModelEditorContextMenu.ModelEditorContextMenuAction
+import com.ichi2.anki.dialogs.NoteTypeEditorContextMenu.Action
 import com.ichi2.anki.tests.InstrumentedTest
 import org.junit.Ignore
 import org.junit.Test
 import org.junit.runner.RunWith
 
 @RunWith(AndroidJUnit4::class)
-class ModelEditorContextMenuTest : InstrumentedTest() {
+class NoteTypeEditorContextMenuTest : InstrumentedTest() {
     private val testDialogTitle = "test editor title"
 
     @Test
     @Ignore("flaky")
     fun showsAllOptions() {
         launchFragment(
-            fragmentArgs = bundleOf(ModelEditorContextMenu.KEY_LABEL to testDialogTitle),
+            fragmentArgs = bundleOf(NoteTypeEditorContextMenu.KEY_LABEL to testDialogTitle),
             themeResId = R.style.Theme_Light,
-        ) { ModelEditorContextMenu() }
+        ) { NoteTypeEditorContextMenu() }
         onView(withText(testDialogTitle)).check(matches(isDisplayed()))
-        ModelEditorContextMenuAction.entries.forEach {
+        Action.entries.forEach {
             onView(withText(it.actionTextId)).check(matches(isDisplayed()))
         }
     }