Change lower-left control to momentary L1

There's so many control keys in this keymap, one needed to go. So, I changed
the lower-left control key to be a momentary L1, just like the same key on the
right side.

keyboard/ergodox_ez/keymaps/keymap_j3rn.c

@@ -18,7 +18,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |--------+------+------+------+------+------| Hyper|           | Meh  |------+------+------+------+------+--------|
  * | LShift |Z/Ctrl|   X  |   C  |   V  |   B  |      |           |      |   N  |   M  |   ,  |   .  |//Ctrl| RShift |
  * `--------+------+------+------+------+-------------'           `-------------+------+------+------+------+--------'
- *   | Ctrl |  '"  |AltShf| Left | Right|                                       |  Up  | Down |   [  |   ]  | ~L1  |
+ *   | ~L1  |  '"  |AltShf| Left | Right|                                       |  Up  | Down |   [  |   ]  | ~L1  |
  *   `----------------------------------'                                       `----------------------------------'
  *                                        ,-------------.       ,-------------.
  *                                        | App  | Home |       | PgUp |Ctrl/Esc|
@@ -36,7 +36,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         KC_TAB,         KC_Q,         KC_W,   KC_E,   KC_R,   KC_T,   KC_MINS,
         CTL_T(KC_ESC),  KC_A,         KC_S,   KC_D,   KC_F,   KC_G,
         KC_LSFT,        CTL_T(KC_Z),  KC_X,   KC_C,   KC_V,   KC_B,   ALL_T(KC_NO),
-        KC_LCTL,        KC_QUOT,      LALT(KC_LSFT),  KC_LEFT,KC_RGHT,
+        KC_FN1,         KC_QUOT,      LALT(KC_LSFT),  KC_LEFT,KC_RGHT,
 
                                               ALT_T(KC_APP),  KC_HOME,
                                                               KC_END,