Update and change Japanese translation

・Follow-up the PR #3411(Update Readme.fonts about Kana), Remove "who really..." strings. I had forgotten it.
・Add readable translated strings in comment
・Add Japanese translation.
  MSG_LCD_ENDSTOPS "エンドストップ"
  (utf8 version only. Because non-utf8 version ("ｴﾝﾄﾞｽﾄｯﾌﾟ") over 8 characters)
・Change translation.
  MSG_ACC "カソクド mm/s2"
  MSG_ACC "\xb6\xbf\xb8\xc4\xde mm/s2" ("ｶｿｸﾄﾞ mm/s2")

Better splash screen consolidation

Add a final lift, if configured, in Manual Bed Leveling

_ENDSTOP_HIT redeclared

Fixed Positional_Shift array overrun

Signed-off-by: Jeff K

Set version for RCBugFix

Show all endstops on LCD in checkHitEndstops

Fix borked set_bed_level_equation_lsq

Improve code in Sd2Card::readBlock

Fix broken PID_PARAMS_PER_EXTRUDER

Configuration.h LCD & SDCard section rewrite

As noted by @FalloutBe in #3519

Follow-up and fix for the PR #3453(ELAPSED / PENDING for rollover-safe time checking)

Oops! Fix MBL move Z to MESH_HOME_SEARCH_Z between probes

・Add more "UL" suffix
・Restore removed "UL" suffix

Don't use LCD alert unless error or alert level is reset later

On wider screens show a wider splash page, if possible

Implementation of M190 bed temp hysteresis

Fix for PR #3502(General cleanup of arc code)

Fix minor spelling in comments

Reduce redundancy in MENU_ITEM code

Fix debugging of vector_3

Relating current_position, min_pos, max_pos, and home_offset

General cleanup of arc code

Update some comments in Configuration.h

Mesh Bed Leveling – Add lift between probes, comments, cleanup