refactor(settings): simplify GC aggressiveness to Off/Light only

Remove Moderate, Heavy, and Extreme GC aggressiveness levels, keeping only Off and Light options for simpler configuration.

- Light mode now uses 75%/90% VRAM thresholds

- Simplified switch statements in texture/buffer cache

- Updated UI dropdowns for desktop and Android

- Light is now the default and recommended setting

src/android/app/src/main/res/values/arrays.xml

@@ -440,17 +440,11 @@
     <string-array name="gcAggressivenessNames">
         <item>@string/gc_aggressiveness_off</item>
         <item>@string/gc_aggressiveness_light</item>
-        <item>@string/gc_aggressiveness_moderate</item>
-        <item>@string/gc_aggressiveness_heavy</item>
-        <item>@string/gc_aggressiveness_extreme</item>
     </string-array>
 
     <integer-array name="gcAggressivenessValues">
         <item>0</item>
         <item>1</item>
-        <item>2</item>
-        <item>3</item>
-        <item>4</item>
     </integer-array>
 
     <!-- Applet Mode setting arrays -->

src/android/app/src/main/res/values/strings.xml

@@ -153,6 +153,7 @@
     <string name="dump_exefs_extracting">Extracting ExeFS…</string>
     <string name="dump_success">Extraction completed successfully</string>
     <string name="dump_failed">Extraction failed</string>
+    <string name="dump_failed_emulation_running">Cannot dump while a game is running. Please close the game first.</string>
     <string name="select_dump_location_description">Choose where to save the extracted files. Select a location or use the default dump directory.</string>
     <string name="select_location">Select Location</string>
     <string name="use_default_location">Use Default</string>
@@ -1289,10 +1290,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     <string name="log_vram_usage">Log VRAM Usage</string>
     <string name="log_vram_usage_description">Enable logging of VRAM usage statistics for debugging purposes.</string>
     <string name="gc_aggressiveness_off">Off (Not Recommended)</string>
-    <string name="gc_aggressiveness_light">Light</string>
-    <string name="gc_aggressiveness_moderate">Moderate (Recommended)</string>
-    <string name="gc_aggressiveness_heavy">Heavy (Low VRAM)</string>
-    <string name="gc_aggressiveness_extreme">Extreme (4GB VRAM)</string>
+    <string name="gc_aggressiveness_light">Light (Recommended)</string>
     <string name="frame_skipping_header">Frame Skipping</string>
 
 </resources>