Revert to LVGL 9.0.0 (#64)

* Revert "Update ESP LCD Touch dependencies (#63)"

This reverts commit cbd0355cec.

* Revert "Updated board configs for LVGL changes (#62)"

This reverts commit 52d769854f.

* Revert "Various updates (#60)"

This reverts commit a8a664703b.

tactility-headless/src/sdcard.c

@@ -46,7 +46,11 @@ bool tt_sdcard_mount(const SdCard* sdcard) {
             .sdcard = sdcard
         };
         sdcard_unlock();
-        return (data.context != NULL);
+        if (data.context != NULL) {
+            return true;
+        } else {
+            return false;
+        }
     } else {
         TT_LOG_E(TAG, "Failed to lock");
         return false;