Fixed error in "faster seeking"

- I made a major oversight when speeding up the grid calibration. I forgot some variables were not set until AFTER the calibration. Fixed it so it is still faster/adaptable, but doesnt try to use values not yet set.

src/df_tools/dfwindow.py

@@ -256,19 +256,21 @@ class DFWINDOW:
         self.focusWindow()
         time.sleep(self.sleep_after_focus)
 
+        img = self.capWindow()
+
         # Improved seeking upper left
-        self.sendKeys("w", 8)
-        img = self.capContent()
-        while not self.TOOLS.isTopBorder(img):
+        self.sendKeys("w", 2)
+        self.sendKeys("a", 2)
+
+        old_img = img
+        img = self.capWindow()
+
+        while self.TOOLS.getImageDiff(old_img, img) > 3:
             self.sendKeys("w", 4)
-            img = self.capContent()
-        self.sendKeys("w", 4)
-        
-        self.sendKeys("a", 8)
-        img = self.capContent()
-        while not self.TOOLS.isLeftBorder(img):
             self.sendKeys("a", 4)
-            img = self.capContent()
+            old_img = img
+            img = self.capWindow()
+        self.sendKeys("w", 4)
         self.sendKeys("a", 4)
 
         img = self.capWindow()
@@ -276,6 +278,7 @@ class DFWINDOW:
         self._content_right = int(img.shape[1] - self._content_left)
         self._content_bottom = int(img.shape[0] - self.bottom_to_ignore)
         img = img[self._content_top : self._content_bottom, self._content_left : self._content_right]  # pyright: ignore[reportOptionalSubscript]
+
         logger.debug(f"Content width {self.contentWidth}. Content height {self.contentHeight}.")
 
         # Try to measure steps