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/hash/frame_12.txt

@@ -0,0 +1,17 @@
+                                      
+                #***#.                
+               #*--A.#*               
+               █  .A*##               
+               A#...**█.              
+              . █.....A.              
+              .█..*-█-.█              
+              .   .A*..*              
+              .   A#*..█              
+              *# .A..#..              
+              .   A.***-              
+              ..  .█***A              
+               #  *. -#.              
+               A **.#**.              
+               █-A█#.*.-              
+                * █.*.A               
+