[android] Another set of QoL changes for Android - 2 (#3886)

Changes:

- Defaults: Set Async GPU and Async Vulkan Presentation to OFF. Stability wasn't worth the trade-off.
- Threading: Lowered default pipeline workers from 7 to 4 to reduce heat and CPU contention.
- Settings: Added a slider for manual pipeline worker count so users can test what works best for their SoC.
- QCOM: Removed SPIRV bans; improves load times and thermals in heavy titles like Jump Force.
- UI: Cleaned up settings descriptions to be less ambiguous.

------------------------
Some games fixed:

-> Trinity Fusion: No longer crashes with Turnip, no longer shows the black dot in the middle of the screen on both QCOM and Turnip drivers.
-> Naruto X Boruto - Ultimate Ninja Storm Connections: Game no longer requires a fixed version of turnip to work (previously requiring Turnip driver from MESA 24.3/ @MrPurple666 EoL v2 driver)

Co-authored-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3886
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: Lizzie <lizzie@eden-emu.dev>

src/common/settings.h

@@ -389,7 +389,7 @@ struct Values {
                                                   true};
 
     SwitchableSetting<bool> use_asynchronous_gpu_emulation{
-                                                           linkage, true, "use_asynchronous_gpu_emulation", Category::Renderer};
+                                                           linkage, false, "use_asynchronous_gpu_emulation", Category::Renderer};
     // *nix platforms may have issues with the borderless windowed fullscreen mode.
     // Default to exclusive fullscreen on these platforms for now.
     SwitchableSetting<FullscreenMode, true> fullscreen_mode{linkage,
@@ -542,7 +542,7 @@ struct Values {
                                                         true};
     SwitchableSetting<bool> async_presentation{linkage,
 #ifdef ANDROID
-                                               true,
+                                               false,
 #else
                                                false,
 #endif
@@ -609,7 +609,7 @@ struct Values {
 #if defined (ANDROID)
                                                        false,
 #else
-                                                       true,
+                                                       false,
 #endif
                                                        "vertex_input_dynamic_state", Category::RendererExtensions};