Change animation frames (#3627)

## Description
- Changes animation frames to be smaller
- Cleans up file names and popup logic

## tests
- Passes local CI

codex-rs/tui/frames/dots/frame_22.txt

@@ -0,0 +1,17 @@
+                                      
+             ○●●○●○○●○●●○             
+         ○●◉●·◉○◉·◉○··◉·●◉●●○         
+       ●◉●◉·○●●·    · ●○●●●○○●●       
+      ◉●·●●             ●●···○●○      
+     ○··◉●            ●○◉·○·◉◉◉●·     
+    ○·●◉·           ●·◉·◉○◉· ○·○○·    
+   ·●●○◉           ·●·○●◉●    ··◉·    
+   ··○··           ·○··○○     ·○· ·   
+   ··● ● ●·○○◉◉◉○●●○○●·○ ○●   ○·◉     
+   ○·○ ●○○○● ◉● ·◉◉·  ○●◉○ ·●● ◉○○    
+    ○○○○·      ●● ·    ·◉●●○◉◉◉ ●·    
+     ○●○○○●               ○●● ·●●     
+      ● ●◉ ●●○         ○◉●● ●○◉       
+        ●◉●●● ●·◉○●◉◉◉○●  ●●●         
+            · ·○◉○○○◉○○◉○●·           
+