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_11.txt

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