Update subtitle position styling

[thornbill]

Changes

• Updates the positioning of subtitles when they are bottom aligned to maintain a constant spacing from the bottom of the screen

Single Line

position	current	updated
-4
-3	line 1	line 1
-2
-1

Two Lines

position	current	updated
-4		line 1
-3	line 1	line 2
-2	line 2
-1

Four Lines

position	current	updated
-6		line 1
-5		line 2
-4	line 1	line 3
-3	line 2	line 4
-2	line 3
-1	line 4

Issues
https://features.jellyfin.org/posts/3210/subtitle-position-correction-adjustment-line-1-2

[jellyfin-bot]

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[dmitrylyzo]

Do native subtitles (Chrome) work the same way?

jellyfin-web/src/plugins/htmlVideoPlayer/plugin.js

Line 1529 in a840b1e

const cueLine = parseInt(subtitleAppearance.verticalPosition, 10);

UPD: It uses old behavior.
Native:

simplescreenrecorder.mp4

[thornbill]

Good catch @dmitrylyzo! This should be working in both cases now. I also adjusted the values since my previous change left you unable to position the subtitles at the very bottom of the screen.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[dmitrylyzo]

Seems to work.