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_9.txt

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