change qt5 to qt6 and change symlink location to /usr/bin

Dockerfile

@@ -9,9 +9,7 @@ RUN apt-get update && \
     jq \
     unzip \
     libglu1-mesa \
-    libqt5widgets5 \
-    libqt5gui5 \
-    libqt5core5a \
+    qt6-base-dev \
     libx11-6 \
     libxtst6 \
     libxrender1 \
@@ -40,9 +38,7 @@ RUN ./FEBioStudio_linux-x64_2.7_FEBio_4.7.run \
       --enable-components comp_febio_sdk
 
 RUN rm FEBioStudio_linux-x64_2.7_FEBio_4.7.run && \
-    ln -s /opt/FEBioStudio/bin/FEBioStudio /opt/FEBioStudio && \
-    ln -s /opt/FEBioStudio/bin/febio4 /opt/febio4
-
-ENV PATH="/opt:$PATH"
+    ln -s /opt/FEBioStudio/bin/FEBioStudio /usr/bin/FEBioStudio && \
+    ln -s /opt/FEBioStudio/bin/febio4 /usr/bin/febio4
 
 ENTRYPOINT ["FEBioStudio"]