Fix text paragraph navigation speech (nvaccess#16145)

Closes nvaccess#16143

Summary of the issue:
NVDA reports roles incorrectly when navigating using P quickNav

Description of user facing changes
Fixed speech so that p quickNav command behaves as expected.

Description of development approach
A quick investigation shows that this is the behavior of speech.speakTextInfo(info, reason=OutputReason.QUICKNAV) as called in browseMode.py:216. I didn't change that in textNav PR.

This makes sense for other QuickNav commands. For example on that page if you press B, you get:

Open global navigation menu Button
Note that the word button goes in the end. If you stumble upon the same button via Control+Up/Down then the speech is

Button Open global navigation menu
So since text paragraph navigation is more similar to caret navigation in the sense that it navigates to text that might contain different roles, I propose to change to reason=OutputReason.CARET for text paragraph navigation as it seems to fix this issue.

source/browseMode.py

@@ -175,13 +175,20 @@ def isRenameAllowed(self):
 class TextInfoQuickNavItem(QuickNavItem):
 	""" Represents a quick nav item in a browse mode document who's positions are represented by a L{textInfos.TextInfo}. """
 
-	def __init__(self,itemType,document,textInfo):
+	def __init__(
+			self,
+			itemType: str,
+			document: treeInterceptorHandler.TreeInterceptor,
+			textInfo: textInfos.TextInfo,
+			outputReason: OutputReason = OutputReason.QUICKNAV,
+	):
 		"""
 		See L{QuickNavItem.__init__} for itemType and document argument definitions.
 		@param textInfo: the textInfo position this item represents.
 		@type textInfo: L{textInfos.TextInfo}
 		"""
 		self.textInfo=textInfo
+		self.outputReason = outputReason
 		super(TextInfoQuickNavItem,self).__init__(itemType,document)
 
 	def __lt__(self,other):
@@ -213,7 +220,7 @@ def report(self,readUnit=None):
 			if info.compareEndPoints(fieldInfo, "endToEnd") > 0:
 				# We've expanded past the end of the field, so limit to the end of the field.
 				info.setEndPoint(fieldInfo, "endToEnd")
-		speech.speakTextInfo(info, reason=OutputReason.QUICKNAV)
+		speech.speakTextInfo(info, reason=self.outputReason)
 
 	def activate(self):
 		self.textInfo.obj._activatePosition(info=self.textInfo)
@@ -471,7 +478,7 @@ def _iterSimilarParagraph(
 				return
 			value = paragraphFunction(info)
 			if value == desiredValue:
-				yield TextInfoQuickNavItem(kind, self, info.copy())
+				yield TextInfoQuickNavItem(kind, self, info.copy(), outputReason=OutputReason.CARET)
 
 
 	def _quickNavScript(self,gesture, itemType, direction, errorMessage, readUnit):