fix size of splits not loading properly

[fourtf]

Pull request checklist:

• CHANGELOG.md was updated, if applicable

Description

Temporarily disables layouting while splits are being loaded. Also brings loading splits from O(N²) to O(N) I guess.

[gempir]

From my testing this is equally effective as my PR without losing any safeties. 👍

[pajlada]

Looks to me like the Y-flexing stays stable with this PR, but the X-flexing changes for each time I run the application

No restart

One restart

Two restarts

Three restarts

[pajlada]

$ diff 1.json 2.json # diff between original size and one restart
39c39
<         "flexh": 0.5241809672386895,
---
>         "flexh": 0.6878198567041964,
$ diff 1.json 3.json # diff between original size and two restarts
39c39
<         "flexh": 0.5241809672386895,
---
>         "flexh": 0.8150394178289873,
$ diff 1.json 4.json # diff between original size and three restarts
39c39
<         "flexh": 0.5241809672386895,
---
>         "flexh": 0.8980955562980287,
$ diff 1.json 5.json # diff between original size and four restarts
39c39
<         "flexh": 0.5241809672386895,
---
>         "flexh": 0.9463122689667313,

# 1.json
{
  "highlightsEnabled": true,
  "selected": true,
  "splits2": {
    "items": [
      {
        "items": [
          {
            "data": {
              "name": "pajlada",
              "type": "twitch"
            },
            "filters": [],
            "flexh": 1,
            "flexv": 0.6297117516629712,
            "moderationMode": false,
            "type": "split"
          },
          {
            "data": {
              "name": "forsen",
              "type": "twitch"
            },
            "filters": [],
            "flexh": 1,
            "flexv": 1.3702882483370287,
            "moderationMode": false,
            "type": "split"
          }
        ],
        "type": "vertical"
      },
      {
        "data": {
          "name": "forsen",
          "type": "twitch"
        },
        "filters": [],
        "flexh": 0.5241809672386895,
        "flexv": 1,
        "moderationMode": false,
        "type": "split"
      }
    ],
    "type": "horizontal"
  }
}

# 5.json
{
  "highlightsEnabled": true,
  "selected": true,
  "splits2": {
    "items": [
      {
        "items": [
          {
            "data": {
              "name": "pajlada",
              "type": "twitch"
            },
            "filters": [],
            "flexh": 1,
            "flexv": 0.6297117516629712,
            "moderationMode": false,
            "type": "split"
          },
          {
            "data": {
              "name": "forsen",
              "type": "twitch"
            },
            "filters": [],
            "flexh": 1,
            "flexv": 1.3702882483370287,
            "moderationMode": false,
            "type": "split"
          }
        ],
        "type": "vertical"
      },
      {
        "data": {
          "name": "forsen",
          "type": "twitch"
        },
        "filters": [],
        "flexh": 0.9463122689667313,
        "flexv": 1,
        "moderationMode": false,
        "type": "split"
      }
    ],
    "type": "horizontal"
  }
}

[pajlada]

Tested in the same fashion as gempirs PR and works perfectly now - no flex changes over multiple restarts 👌

Will merge in/rebase master onto branch after #2628