Update theme and browserlist

Front/skydivelogs-app/.browserslistrc

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+# This file is used by the build system to adjust CSS and JS output to support the specified browsers below.
+# For additional information regarding the format and rule options, please see:
+# https://github.com/browserslist/browserslist#queries
+
+# For the full list of supported browsers by the Angular framework, please see:
+# https://angular.dev/reference/versions#browser-support
+
+# You can see what browsers were selected by your queries by running:
+#   npx browserslist
+
+> 0.5%
+last 2 versions
+Firefox ESR
+not dead
+not IE 9-11 # For IE 9-11 support, remove 'not'.
+
+#last 2 Chrome versions
+#last 1 Firefox version
+#last 2 Edge major versions
+#last 2 Safari major versions
+#last 2 iOS major versions
+#last 2 Android major versions
+#Firefox ESR