Keymap: Cleanups on the ergodox EZ / atreus dvorak 42 key layouts (#3887)

* add SCREEN_NAV layer for copy/pasting within screen

* working readreg/paste macros

* working read reg / paste macros

* write log and tran patterns, and expand

* add ls -la shortcut, add tab on combined layer

* put delete word on the right pinky key on shell_nav layer

* add TAB on the right side, add reset key

* added Cloud9 macros

* add cloud9 shortcuts to atreus layout

* added BROWSER_CONTROL layer

* finalized browser control layer

* adding comment

* add browser control layer to atreus

* add flashing command line

* remove the tab on combined layer

* remove the tomouse

* remove mouse layer, change log/tran expand patterns, cleanups

* add dumptlog macro

* add "delete to home" shortcut

* fix conflict

* remove unneeded mouse layer

* add meh shortcuts on the browser_control layer

* add/modify some macros

* explain the various layers

* putty paste is right mouse button

keyboards/ergodox_ez/keymaps/dvorak_42_key/keymap.c

@@ -230,7 +230,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
        KC_TRNS,    KC_TRNS,    KC_TRNS,             KC_TRNS,         KC_TRNS,    KC_TRNS,    SHELL_EXPAND_OE_TRANPATTERN,
        RCTL(KC_L), RCTL(KC_W), KC_HOME,             KC_UP,           KC_END,     KC_TRNS,    SHELL_EXPAND_OE_LOGPATTERN,
                    LALT(KC_B), KC_LEFT,             KC_DOWN,         KC_RIGHT,   LALT(KC_F), RCTL(KC_W),
-       RCTL(KC_C), RCTL(KC_U), LALT(KC_DOT),        RCTL(KC_R),      MEH(KC_V),  RCTL(KC_K), SHELL_DUMPTLOG,
+       RCTL(KC_C), RCTL(KC_U), LALT(KC_DOT),        RCTL(KC_R),      KC_BTN2,    RCTL(KC_K), SHELL_DUMPTLOG,
                    // bottom row (match functionality of base layer)
                    KC_BSPC,    RCTL(KC_W),          KC_DELETE,       LALT(KC_D), RCTL(KC_U),
        // thumb cluster