refactor: EqualizerWidget and the logic behind it.

convenience add: build.sh cai option (Clean AppImage)

build.sh

@@ -17,6 +17,7 @@ clean_build() {
     clean
     mkdir build
     cd build
+    echo "doing a clean build"
     cmake ..
     make -j"$(nproc)"
 }
@@ -24,10 +25,11 @@ clean_build() {
 release_build() {
     if [ -d "build" ]; then
         rm -rf "build"
+        echo "removing build directory"
     fi
     mkdir "build"
-
     cd build 
+    echo "starting cmake and make processes"
     cmake -DCMAKE_BUILD_TYPE=Release ..
     make -j"$(nproc)"
 }
@@ -36,6 +38,14 @@ run_executable() {
     ./build/SubWave
 }
 
+clean_appimage() {
+    if [ -e "SubWave-x86_64.AppImage" ]; then 
+        rm -rf SubWave-x86_64.AppImage
+        echo "Removed AppImage"
+    fi
+    echo "No AppImage found, aborting"
+}
+
 case "${1:-build}" in
     clean|c)
         clean
@@ -52,6 +62,9 @@ case "${1:-build}" in
     release|rb)
         release_build
         ;;
+    cai|clean_appimage|cleanimg)
+        clean_appimage
+        ;;
     *)
         echo "Usage: $0 {build|clean|cleanbuild|cb}"
         exit 1